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If I know the CPU architecture of a target, can I send instructions embedded in an image?
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This question can be hard to ask (not sure), but it's very simple:
Can I send instructions embedded in an image to a target, if I know his CPU architecture?
Thanks!
architecture image cpu
asked 3 hours ago
Faminha102
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Faminha102 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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up vote
1
down vote
favorite
This question can be hard to ask (not sure), but it's very simple:
Can I send instructions embedded in an image to a target, if I know his CPU architecture?
Thanks!
architecture image cpu
asked 3 hours ago
Faminha102
61
New contributor
Faminha102 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
This question can be hard to ask (not sure), but it's very simple:
Can I send instructions embedded in an image to a target, if I know his CPU architecture?
Thanks!
architecture image cpu
asked 3 hours ago
Faminha102
61
New contributor
Faminha102 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This question can be hard to ask (not sure), but it's very simple:
Can I send instructions embedded in an image to a target, if I know his CPU architecture?
Thanks!
architecture image cpu
architecture image cpu
asked 3 hours ago
Faminha102
61
New contributor
Faminha102 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Faminha102
61
New contributor
Faminha102 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Faminha102
61
New contributor
Faminha102 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Faminha102
61
asked 3 hours ago
Faminha102
61
61
New contributor
Faminha102 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Faminha102 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Faminha102 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
add a comment |Â
3 Answers
3
active
oldest
votes
up vote
1
down vote
Can you send them? Yes, of course. Just assemble them and stick them somewhere in the image file.
Will the target execute them? No, not unless you already have control over the target (and can thus put a program there to read and execute them), or you find some exploit in an image viewer and get the image to load in it.
answered 3 hours ago
Joseph Sible
521210
Shouldn't the CPU execute the instructions by only opening the image?
– Faminha102
3 hours ago
No, why would it?
– Joseph Sible
3 hours ago
Because the CPU would have to process that information, from what I understand.
– Faminha102
3 hours ago
Processing bytes of data is different than executing those bytes. One doesn't imply the other.
– Joseph Sible
3 hours ago
Isn't everything bytes in the end?
– Faminha102
3 hours ago
 |Â
show 3 more comments
up vote
1
down vote
No. Image files such as JPEG files don't execute code, they are simply rendered and displayed.
If you want to hide some information in a file that's called Steganography, but that only hides information, it doesn't execute any instructions.
For a file to run code it has to be an executable, or be run by another program which reads the file, then executes the commands in the file.
In this case the rare instance when an image could result in executing code is if there were a bug in the software which rendered the image based off the file. This has happened in the past, but it's exceedingly rare. For all practical purposes an image can't run instructions.
This of course isn't the case for PDFs, Adobe Flash, etc.
answered 3 hours ago
Daisetsu
2,746516
Interesting. So with PDFs this would ok, that's what you are saying?
– Faminha102
3 hours ago
PDFs have more functionality, they can be interactive, load external resources, embed other files, etc. They aren't as dangerous as Word/Execl files though.
– Daisetsu
3 hours ago
Could you elaborate more?
– Faminha102
3 hours ago
Elaborate more on what? A trojan horse style attack relies on an innocent looking file which either contains a malicious payload (word macros, executable files, javascript) OR is read by a vulnerable parser. This second case is pretty rare, and gets a lot of attention because it would effect so many people. There's one example you're probably familiar with, which is Flash. Flash has constant security updates, because it tries to do so much, there's a lot of ways to craft a file which results in (sometimes) arbitrary code execution.
– Daisetsu
3 hours ago
add a comment |Â
up vote
0
down vote
Not sure if you mean Image as in photo? or OS?
answered 2 hours ago
Robert Joodat
11
New contributor
Robert Joodat is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
Can you send them? Yes, of course. Just assemble them and stick them somewhere in the image file.
Will the target execute them? No, not unless you already have control over the target (and can thus put a program there to read and execute them), or you find some exploit in an image viewer and get the image to load in it.
answered 3 hours ago
Joseph Sible
521210
Shouldn't the CPU execute the instructions by only opening the image?
– Faminha102
3 hours ago
No, why would it?
– Joseph Sible
3 hours ago
Because the CPU would have to process that information, from what I understand.
– Faminha102
3 hours ago
Processing bytes of data is different than executing those bytes. One doesn't imply the other.
– Joseph Sible
3 hours ago
Isn't everything bytes in the end?
– Faminha102
3 hours ago
 |Â
show 3 more comments
up vote
1
down vote
Can you send them? Yes, of course. Just assemble them and stick them somewhere in the image file.
Will the target execute them? No, not unless you already have control over the target (and can thus put a program there to read and execute them), or you find some exploit in an image viewer and get the image to load in it.
answered 3 hours ago
Joseph Sible
521210
Shouldn't the CPU execute the instructions by only opening the image?
– Faminha102
3 hours ago
No, why would it?
– Joseph Sible
3 hours ago
Because the CPU would have to process that information, from what I understand.
– Faminha102
3 hours ago
Processing bytes of data is different than executing those bytes. One doesn't imply the other.
– Joseph Sible
3 hours ago
Isn't everything bytes in the end?
– Faminha102
3 hours ago
 |Â
show 3 more comments
up vote
1
down vote
up vote
1
down vote
Can you send them? Yes, of course. Just assemble them and stick them somewhere in the image file.
Will the target execute them? No, not unless you already have control over the target (and can thus put a program there to read and execute them), or you find some exploit in an image viewer and get the image to load in it.
answered 3 hours ago
Joseph Sible
521210
Can you send them? Yes, of course. Just assemble them and stick them somewhere in the image file.
Will the target execute them? No, not unless you already have control over the target (and can thus put a program there to read and execute them), or you find some exploit in an image viewer and get the image to load in it.
answered 3 hours ago
Joseph Sible
521210
answered 3 hours ago
Joseph Sible
521210
answered 3 hours ago
Joseph Sible
521210
answered 3 hours ago
Joseph Sible
521210
521210
Shouldn't the CPU execute the instructions by only opening the image?
– Faminha102
3 hours ago
No, why would it?
– Joseph Sible
3 hours ago
Because the CPU would have to process that information, from what I understand.
– Faminha102
3 hours ago
Processing bytes of data is different than executing those bytes. One doesn't imply the other.
– Joseph Sible
3 hours ago
Isn't everything bytes in the end?
– Faminha102
3 hours ago
 |Â
show 3 more comments
Shouldn't the CPU execute the instructions by only opening the image?
– Faminha102
3 hours ago
No, why would it?
– Joseph Sible
3 hours ago
Because the CPU would have to process that information, from what I understand.
– Faminha102
3 hours ago
Processing bytes of data is different than executing those bytes. One doesn't imply the other.
– Joseph Sible
3 hours ago
Isn't everything bytes in the end?
– Faminha102
3 hours ago
Shouldn't the CPU execute the instructions by only opening the image?
– Faminha102
3 hours ago
Shouldn't the CPU execute the instructions by only opening the image?
– Faminha102
3 hours ago
No, why would it?
– Joseph Sible
3 hours ago
No, why would it?
– Joseph Sible
3 hours ago
Because the CPU would have to process that information, from what I understand.
– Faminha102
3 hours ago
Because the CPU would have to process that information, from what I understand.
– Faminha102
3 hours ago
Processing bytes of data is different than executing those bytes. One doesn't imply the other.
– Joseph Sible
3 hours ago
Processing bytes of data is different than executing those bytes. One doesn't imply the other.
– Joseph Sible
3 hours ago
Isn't everything bytes in the end?
– Faminha102
3 hours ago
Isn't everything bytes in the end?
– Faminha102
3 hours ago
 |Â
show 3 more comments
up vote
1
down vote
No. Image files such as JPEG files don't execute code, they are simply rendered and displayed.
If you want to hide some information in a file that's called Steganography, but that only hides information, it doesn't execute any instructions.
For a file to run code it has to be an executable, or be run by another program which reads the file, then executes the commands in the file.
In this case the rare instance when an image could result in executing code is if there were a bug in the software which rendered the image based off the file. This has happened in the past, but it's exceedingly rare. For all practical purposes an image can't run instructions.
This of course isn't the case for PDFs, Adobe Flash, etc.
answered 3 hours ago
Daisetsu
2,746516
Interesting. So with PDFs this would ok, that's what you are saying?
– Faminha102
3 hours ago
PDFs have more functionality, they can be interactive, load external resources, embed other files, etc. They aren't as dangerous as Word/Execl files though.
– Daisetsu
3 hours ago
Could you elaborate more?
– Faminha102
3 hours ago
Elaborate more on what? A trojan horse style attack relies on an innocent looking file which either contains a malicious payload (word macros, executable files, javascript) OR is read by a vulnerable parser. This second case is pretty rare, and gets a lot of attention because it would effect so many people. There's one example you're probably familiar with, which is Flash. Flash has constant security updates, because it tries to do so much, there's a lot of ways to craft a file which results in (sometimes) arbitrary code execution.
– Daisetsu
3 hours ago
add a comment |Â
up vote
1
down vote
No. Image files such as JPEG files don't execute code, they are simply rendered and displayed.
If you want to hide some information in a file that's called Steganography, but that only hides information, it doesn't execute any instructions.
For a file to run code it has to be an executable, or be run by another program which reads the file, then executes the commands in the file.
In this case the rare instance when an image could result in executing code is if there were a bug in the software which rendered the image based off the file. This has happened in the past, but it's exceedingly rare. For all practical purposes an image can't run instructions.
This of course isn't the case for PDFs, Adobe Flash, etc.
answered 3 hours ago
Daisetsu
2,746516
Interesting. So with PDFs this would ok, that's what you are saying?
– Faminha102
3 hours ago
PDFs have more functionality, they can be interactive, load external resources, embed other files, etc. They aren't as dangerous as Word/Execl files though.
– Daisetsu
3 hours ago
Could you elaborate more?
– Faminha102
3 hours ago
Elaborate more on what? A trojan horse style attack relies on an innocent looking file which either contains a malicious payload (word macros, executable files, javascript) OR is read by a vulnerable parser. This second case is pretty rare, and gets a lot of attention because it would effect so many people. There's one example you're probably familiar with, which is Flash. Flash has constant security updates, because it tries to do so much, there's a lot of ways to craft a file which results in (sometimes) arbitrary code execution.
– Daisetsu
3 hours ago
add a comment |Â
up vote
1
down vote
up vote
1
down vote
No. Image files such as JPEG files don't execute code, they are simply rendered and displayed.
If you want to hide some information in a file that's called Steganography, but that only hides information, it doesn't execute any instructions.
For a file to run code it has to be an executable, or be run by another program which reads the file, then executes the commands in the file.
In this case the rare instance when an image could result in executing code is if there were a bug in the software which rendered the image based off the file. This has happened in the past, but it's exceedingly rare. For all practical purposes an image can't run instructions.
This of course isn't the case for PDFs, Adobe Flash, etc.
answered 3 hours ago
Daisetsu
2,746516
No. Image files such as JPEG files don't execute code, they are simply rendered and displayed.
If you want to hide some information in a file that's called Steganography, but that only hides information, it doesn't execute any instructions.
For a file to run code it has to be an executable, or be run by another program which reads the file, then executes the commands in the file.
In this case the rare instance when an image could result in executing code is if there were a bug in the software which rendered the image based off the file. This has happened in the past, but it's exceedingly rare. For all practical purposes an image can't run instructions.
This of course isn't the case for PDFs, Adobe Flash, etc.
answered 3 hours ago
Daisetsu
2,746516
answered 3 hours ago
Daisetsu
2,746516
answered 3 hours ago
Daisetsu
2,746516
answered 3 hours ago
Daisetsu
2,746516
2,746516
Interesting. So with PDFs this would ok, that's what you are saying?
– Faminha102
3 hours ago
PDFs have more functionality, they can be interactive, load external resources, embed other files, etc. They aren't as dangerous as Word/Execl files though.
– Daisetsu
3 hours ago
Could you elaborate more?
– Faminha102
3 hours ago
Elaborate more on what? A trojan horse style attack relies on an innocent looking file which either contains a malicious payload (word macros, executable files, javascript) OR is read by a vulnerable parser. This second case is pretty rare, and gets a lot of attention because it would effect so many people. There's one example you're probably familiar with, which is Flash. Flash has constant security updates, because it tries to do so much, there's a lot of ways to craft a file which results in (sometimes) arbitrary code execution.
– Daisetsu
3 hours ago
add a comment |Â
Interesting. So with PDFs this would ok, that's what you are saying?
– Faminha102
3 hours ago
PDFs have more functionality, they can be interactive, load external resources, embed other files, etc. They aren't as dangerous as Word/Execl files though.
– Daisetsu
3 hours ago
Could you elaborate more?
– Faminha102
3 hours ago
Elaborate more on what? A trojan horse style attack relies on an innocent looking file which either contains a malicious payload (word macros, executable files, javascript) OR is read by a vulnerable parser. This second case is pretty rare, and gets a lot of attention because it would effect so many people. There's one example you're probably familiar with, which is Flash. Flash has constant security updates, because it tries to do so much, there's a lot of ways to craft a file which results in (sometimes) arbitrary code execution.
– Daisetsu
3 hours ago
Interesting. So with PDFs this would ok, that's what you are saying?
– Faminha102
3 hours ago
Interesting. So with PDFs this would ok, that's what you are saying?
– Faminha102
3 hours ago
PDFs have more functionality, they can be interactive, load external resources, embed other files, etc. They aren't as dangerous as Word/Execl files though.
– Daisetsu
3 hours ago
PDFs have more functionality, they can be interactive, load external resources, embed other files, etc. They aren't as dangerous as Word/Execl files though.
– Daisetsu
3 hours ago
Could you elaborate more?
– Faminha102
3 hours ago
Could you elaborate more?
– Faminha102
3 hours ago
Elaborate more on what? A trojan horse style attack relies on an innocent looking file which either contains a malicious payload (word macros, executable files, javascript) OR is read by a vulnerable parser. This second case is pretty rare, and gets a lot of attention because it would effect so many people. There's one example you're probably familiar with, which is Flash. Flash has constant security updates, because it tries to do so much, there's a lot of ways to craft a file which results in (sometimes) arbitrary code execution.
– Daisetsu
3 hours ago
Elaborate more on what? A trojan horse style attack relies on an innocent looking file which either contains a malicious payload (word macros, executable files, javascript) OR is read by a vulnerable parser. This second case is pretty rare, and gets a lot of attention because it would effect so many people. There's one example you're probably familiar with, which is Flash. Flash has constant security updates, because it tries to do so much, there's a lot of ways to craft a file which results in (sometimes) arbitrary code execution.
– Daisetsu
3 hours ago
add a comment |Â
up vote
0
down vote
Not sure if you mean Image as in photo? or OS?
answered 2 hours ago
Robert Joodat
11
New contributor
Robert Joodat is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
0
down vote
Not sure if you mean Image as in photo? or OS?
answered 2 hours ago
Robert Joodat
11
New contributor
Robert Joodat is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
0
down vote
up vote
0
down vote
Not sure if you mean Image as in photo? or OS?
answered 2 hours ago
Robert Joodat
11
New contributor
Robert Joodat is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Not sure if you mean Image as in photo? or OS?
answered 2 hours ago
Robert Joodat
11
New contributor
Robert Joodat is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 2 hours ago
Robert Joodat
11
New contributor
Robert Joodat is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 2 hours ago
Robert Joodat
11
answered 2 hours ago
Robert Joodat
11
11
New contributor
Robert Joodat is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Robert Joodat is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Robert Joodat is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
add a comment |Â
Faminha102 is a new contributor. Be nice, and check out our Code of Conduct.
Faminha102 is a new contributor. Be nice, and check out our Code of Conduct.
Faminha102 is a new contributor. Be nice, and check out our Code of Conduct.
Faminha102 is a new contributor. Be nice, and check out our Code of Conduct.
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