CVE-2019-10655

CVE-2019-10655 has been observed exploited in the wild (reported by VulnCheck KEV, InTheWild.io). EIP tracks 1 public exploit from researchers including alhazred, Brendan Scarvell, bcoles, including a Metasploit module exploits/linux/http/grandstream_gxv31xx_settimezone_unauth_cmd_exec.

AI-analyzed exploit summary This Metasploit module exploits an unauthenticated command injection vulnerability in Grandstream GXV31XX IP phones via the 'settimezone' action, combined with a buffer overflow in 'phonecookie' to bypass authentication.

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.