PT-2017-16521 · B2Evolution · B2Evolution

Blackwolfsec · Published 2017-01-15 · Updated 2017-01-18 · CVE-2017-5480

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions b2evolution versions prior to 6.8.4

Description A directory traversal issue exists, allowing remote authenticated users to read or delete arbitrary files. This is achieved by providing a .. (dot dot) in the fm selected array parameter in the inc/files/files.ctrl.php file, leveraging back-office access.

Recommendations For versions prior to 6.8.4, update to version 6.8.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the back-office and limiting the use of the fm selected array parameter in the inc/files/files.ctrl.php file until a patch is available.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2017-5480

Affected Products

B2Evolution

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2017-5480 · Security Note
• https://osv.dev/vulnerability/CVE-2017-5480 · Vendor Advisory
• https://github.com/b2evolution/b2evolution/issues/35 · Note
• https://github.com/b2evolution/b2evolution/commit/26841d9c81f27ad23b2f6e4bd5eaec7f2f58dfe0 · Note
• http://securityfocus.com/bid/95454 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5480 · Note