Directory Traversal Vulnerability in RARLAB UnRAR on Linux and UNIX
CVE-2022-30333
Key Information:
Badges
Summary
RARLAB's UnRAR tool prior to version 6.12 on Linux and UNIX systems is susceptible to a directory traversal vulnerability. This flaw allows an attacker to manipulate the extraction process, potentially leading to malicious file write operations. For instance, an attacker could exploit this vulnerability to create or overwrite critical files, such as the ~/.ssh/authorized_keys file, which can grant unauthorized access to the affected system. It is important to ensure your version of UnRAR is updated to mitigate this risk.
CISA Reported
CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace
The CISA's recommendation is: Apply updates per vendor instructions.
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
EPSS Score
90% chance of being exploited in the next 30 days.
CVSS V3.1
Timeline
- 🦅
CISA Reported
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved