CVE-2022-30333 is a vulnerability in Canonical Ubuntu Linux
Published on May 9, 2022
RARLAB UnRAR before 6.12 on Linux and UNIX allows directory traversal to write to files during an extract (aka unpack) operation, as demonstrated by creating a ~/.ssh/authorized_keys file. NOTE: WinRAR and Android RAR are unaffected.
Known Exploited Vulnerability
This RARLAB UnRAR Directory Traversal Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. RARLAB UnRAR on Linux and UNIX contains a directory traversal vulnerability, allowing an attacker to write to files during an extract (unpack) operation.
The following remediation steps are recommended / required by August 30, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2022-30333 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. It has the highest possible exploitability rating (3.9). The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
What is a Directory traversal Vulnerability?
The software 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 software 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.
CVE-2022-30333 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2022-30333
You can be notified by stack.watch whenever vulnerabilities like CVE-2022-30333 are published in these products:
What versions of Ubuntu Linux are vulnerable to CVE-2022-30333?
Each of the following must match for the vulnerability to exist.