CVE-2019-10655

critical

Description

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.

References

https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=23920&dl=1

https://github.com/scarvell/grandstream_exploits

http://packetstormsecurity.com/files/165643/Grandstream-GXV3175-Unauthenticated-Command-Execution.html

http://packetstormsecurity.com/files/165931/Grandstream-GXV31XX-settimezone-Unauthenticated-Command-Execution.html

Details

Source: MITRE

Published: 2019-03-30

Updated: 2022-04-18

Type: CWE-119

Risk Information

CVSS v2

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL