CVE-2023-52333
Published: 22 November 2024
Summary
CVE-2023-52333 is a high-severity Path Traversal (CWE-22) vulnerability in Alltena Allegra. Its CVSS base score is 7.3 (High).
Operationally, ranked in the top 9.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Allegra contains a directory traversal vulnerability in the saveFile method that permits remote code execution. The flaw stems from insufficient validation of user-supplied paths before they are used in file operations, allowing an attacker to write or execute arbitrary content. The issue affects installations of Allegra and carries a CVSS 3.1 score of 7.3 with a CWE-22 classification.
Although the vulnerability requires authentication, the product’s built-in registration mechanism enables an attacker to create an account with adequate privileges. Successful exploitation grants code execution in the context of the LOCAL SERVICE account, giving the attacker the ability to run commands and potentially access or modify files on the affected system.
The Zero Day Initiative advisory ZDI-24-104 and Allegra 7.5.1 release notes address the issue; operators should apply the vendor update to remediate the path-handling weakness. The associated EPSS score has remained flat at 0.06 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-56990
Vulnerability details
Allegra saveFile 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, product implements a registration mechanism that can be used to…
more
create a user with a sufficient privilege level. The specific flaw exists within the saveFile 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-22548.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Validates pathnames and filenames to prevent traversal outside intended directories.