CVE-2019-10655

Grandstream GAC2500 1.0.3.35, GXP2200 1.0.3.27, GVC3202 1.0.3.51, GXV3275 before 1.0.3.219 Beta, and GXV3240 before 1.0.3.219 Beta devices allow unauthenticated remote code execution via shell metacharacters in a /manager?action=getlogcat priority field, in conjunction with a buffer overflow (via the phonecookie cookie) to overwrite a data structure and consequently bypass authentication. This can be exploited remotely or via CSRF because the cookie can be placed in an Accept HTTP header in an XMLHttpRequest call to lighttpd.

Affected products

Grandstream Gac2500, Grandstream Gvc3202, Grandstream Gxp2200, Grandstream Gxv3240, Grandstream Gxv3275, Lighttpd

Grandstream gac2500 Firmware

≤ 1.0.3.35

Fix

Available

CVSS 3.1

9.8 CRITICAL

EPSS

15.4% (96th percentile)

Weakness

CWE-119, CWE-352, CWE-78

NVD status

Modified

Published

2019-03-30