Arbitrary file write via symlink chains
Published Aug 7, 2023 · Updated Oct 17, 2024
Path traversal in RARLAB UnRAR before 6.2.3 allows attackers to write files outside the destination via a crafted RAR archive. Extraction path checks fail to account for chained symlinks with relative parent-directory targets, allowing a later file path to resolve beyond the chosen output directory. Exploitation requires processing an attacker-supplied archive and places archive contents at filesystem locations writable by the UnRAR process.
Summary
What happened
Path traversal in RARLAB UnRAR before 6.2.3 allows attackers to write files outside the destination via a crafted RAR archive. Extraction path checks fail to account for chained symlinks with relative parent-directory targets, allowing a later file path to resolve beyond the chosen output directory. Exploitation requires processing an attacker-supplied archive and places archive contents at filesystem locations writable by the UnRAR process.
The record
- CVE
- CVE-2022-48579
- Published
- Aug 7, 2023
- Updated
- Oct 17, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-59
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 7, 2023CVE publishedPublication date reported by the CVE source.
- Oct 17, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo