Advisory Details

February 9th, 2024

Allegra saveInlineEdit Directory Traversal Remote Code Execution Vulnerability

ZDI-24-108
ZDI-CAN-22528

CVE ID CVE-2023-22528
CVSS SCORE 7.2, AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Allegra
AFFECTED PRODUCTS Allegra
VULNERABILITY DETAILS

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 saveInlineEdit 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.

ADDITIONAL DETAILS Allegra has issued an update to correct this vulnerability. More details can be found at:
https://www.trackplus.com/en/service/release-notes-reader/7-5-1-release-notes-2.html
DISCLOSURE TIMELINE
  • 2023-12-06 - Vulnerability reported to vendor
  • 2024-02-09 - Coordinated public release of advisory
CREDIT 06fe5fd2bc53027c4a3b7e395af0b850e7b8a044
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