Deserialization in Allegra
CVE-2023-51641
Allegra renderFieldMatch Deserialization of Unstrusted Data 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, product implements a registration mechanism that can be used to create a user with a sufficient privilege level. The specific flaw exists within the renderFieldMatch method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-22505.
Vulnerability class: Insecure Deserialization
EPSS: 0.013 (66.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/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-2023-51641?
- CVE-2023-51641 is a medium-severity vulnerability in Allegra, classified under Deserialization of Untrusted Data. CVSS score: 6.3/10. Published 2024-11-22.
- How severe is CVE-2023-51641?
- Medium severity. CVSS v3 base score is 6.3 out of 10.