VulnerabilityAnalyzed

CVE-2023-51639

Allegra downloadExportedChart Directory Traversal Authentication Bypass Vulnerability.

CRITICAL 9.8EPSS 2.49%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Allegra downloadExportedChart Directory Traversal Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Allegra. Authentication is not required to exploit this vulnerability. The specific flaw exists within the downloadExportedChart action. 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 bypass authentication on the system. Was ZDI-CAN-22361.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 2.49% probability · 84th percentile
CISA KEV: Not listed
Weakness: CWE-22
Affected: alltena/allegra
Source: zdi-disclosures@trendmicro.com

References

https://www.trackplus.com/en/service/release-notes-reader/7-5-1-release-notes-2.htmlRelease Notes
https://www.zerodayinitiative.com/advisories/ZDI-24-110/Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.