Vulnerability Description
Bytecode Viewer (BCV) is a Java/Android reverse engineering suite. Versions of the package prior to 2.11.0 are vulnerable to Arbitrary File Write via Archive Extraction (AKA "Zip Slip"). The vulnerability is exploited using a specially crafted archive that holds directory traversal filenames (e.g. ../../evil.exe). The Zip Slip vulnerability can affect numerous archive formats, including zip, jar, tar, war, cpio, apk, rar and 7z. The attacker can then overwrite executable files and either invoke them remotely or wait for the system or user to call them, thus achieving remote command execution on the victim’s machine. The impact of a Zip Slip vulnerability would allow an attacker to create or overwrite existing files on the filesystem. In the context of a web application, a web shell could be placed within the application directory to achieve code execution. All users should upgrade to BCV v2.11.0 when possible to receive a patch. There are no recommended workarounds aside from upgrading.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bytecode Viewer Project | Bytecode Viewer | >= 2.10.16, < 2.11.0 |
Related Weaknesses (CWE)
References
- https://github.com/Konloch/bytecode-viewer/commit/1ec02658fe6858162f5e6a24f97928PatchThird Party Advisory
- https://github.com/Konloch/bytecode-viewer/commit/c968e94b2c93da434a4ecfac6d08edPatchThird Party Advisory
- https://github.com/Konloch/bytecode-viewer/releases/tag/v2.11.0Release NotesThird Party Advisory
- https://github.com/Konloch/bytecode-viewer/security/advisories/GHSA-3wq9-j4fc-4wPatchThird Party Advisory
- https://github.com/Konloch/bytecode-viewer/commit/1ec02658fe6858162f5e6a24f97928PatchThird Party Advisory
- https://github.com/Konloch/bytecode-viewer/commit/c968e94b2c93da434a4ecfac6d08edPatchThird Party Advisory
- https://github.com/Konloch/bytecode-viewer/releases/tag/v2.11.0Release NotesThird Party Advisory
- https://github.com/Konloch/bytecode-viewer/security/advisories/GHSA-3wq9-j4fc-4wPatchThird Party Advisory
FAQ
What is CVE-2022-21675?
CVE-2022-21675 is a vulnerability with a CVSS score of 9.9 (CRITICAL). Bytecode Viewer (BCV) is a Java/Android reverse engineering suite. Versions of the package prior to 2.11.0 are vulnerable to Arbitrary File Write via Archive Extraction (AKA "Zip Slip"). The vulnerabi...
How severe is CVE-2022-21675?
CVE-2022-21675 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2022-21675?
Check the references section above for vendor advisories and patch information. Affected products include: Bytecode Viewer Project Bytecode Viewer.