Vulnerability Details : CVE-2022-21675
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.
Vulnerability category: Directory traversal
Products affected by CVE-2022-21675
- Bytecode Viewer Project » Bytecode ViewerVersions from including (>=) 2.10.16 and before (<) 2.11.0cpe:2.3:a:bytecode_viewer_project:bytecode_viewer:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-21675
1.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 76 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-21675
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | |
9.9
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H |
3.1
|
6.0
|
GitHub, Inc. |
CWE ids for CVE-2022-21675
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2022-21675
-
https://github.com/Konloch/bytecode-viewer/releases/tag/v2.11.0
Release 2.11.0 - Security Update · Konloch/bytecode-viewer · GitHubRelease Notes;Third Party Advisory
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https://github.com/Konloch/bytecode-viewer/commit/1ec02658fe6858162f5e6a24f97928de6696c5cb
Improve Zip Slip detection · Konloch/bytecode-viewer@1ec0265 · GitHubPatch;Third Party Advisory
-
https://github.com/Konloch/bytecode-viewer/security/advisories/GHSA-3wq9-j4fc-4wmc
Bytecode Viewer v2.10.x Zip Slip · Advisory · Konloch/bytecode-viewer · GitHubPatch;Third Party Advisory
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https://github.com/Konloch/bytecode-viewer/commit/c968e94b2c93da434a4ecfac6d08eda162d615d0
Mitigate Zip Slip exlpoit · Konloch/bytecode-viewer@c968e94 · GitHubPatch;Third Party Advisory
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