by Kastro
Paper/Archive/CVE-2022-2070

CVE-2022-2070

Grandstream Grandstream GSD3710 — Grandstream GSD3710 Stack-based Buffer Overflow

EPSS 6%CVSS 9.8
critical.is priorityof 100
48
CVSS 9.8 (NVD, CNA agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 93.2.932 × 2018.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

In Grandstream GSD3710 in its 1.0.11.13 version, it's possible to overflow the stack since it doesn't check the param length before using the sscanf instruction. Because of that, an attacker could create a socket and connect with a remote IP:port by opening a shell and getting full access to the system. The exploit affects daemons dbmng and logsrv that are running on ports 8000 and 8001 by default.

Affected

ProductAffectedFixed inSource
Grandstream GSD37101.0.11.13–CNA

Scores by source

INCIBE (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refincibe-cert.es/en/early-warning/security-advisories/buffer-overflow-vulnerabilities-grandstream-gsd3710