Path Traversal in Allegra
CVE-2023-51640
Allegra extarctZippedFile Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the extarctZippedFile [sic] method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-22504.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.018 (76.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Allegra — versions 7.5.0 build 29
- Alltena Allegra
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
- zdi-disclosures@trendmicro.com (vendor-advisory, Release Notes)
Frequently asked questions
- What is CVE-2023-51640?
- CVE-2023-51640 is a medium-severity vulnerability in Allegra, classified under Path Traversal. CVSS score: 4.7/10. Published 2024-11-22.
- How severe is CVE-2023-51640?
- Medium severity. CVSS v3 base score is 4.7 out of 10.