PT-2021-14560 · Mk-Auth · Mk-Auth

Alacerda + 3 · Published 2021-01-04 · Updated 2022-05-03 · CVE-2021-21494

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions MK-AUTH versions through 19.01 K4.9

Description The issue allows for XSS via the "admin/logs ajax.php" endpoint, specifically through the tipo parameter. An attacker can exploit this to read the centralmka2 (session token) cookie, which is not set to HTTPOnly.

Recommendations For MK-AUTH versions through 19.01 K4.9, consider restricting access to the "admin/logs ajax.php" endpoint until a patch is available. As a temporary workaround, avoid using the tipo parameter in the affected endpoint to minimize the risk of exploitation.

Exploit

Fix

Incorrect Permission

Weakness Enumeration

CWE-732

Related Identifiers

CVE-2021-21494

Affected Products

Mk-Auth

References · 5

• 🔥 https://gist.github.com/alacerda/380b8923e36a29a02ba1457c1eb3ec2f · Exploit
• http://mk-auth.com.br · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21494 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21494 · Vendor Advisory
• https://t.me/cibsecurity/21521 · Telegram Post