CVE-2022-45853
Published: 30 May 2023
Summary
CVE-2022-45853 is a medium-severity Improper Privilege Management (CWE-269) vulnerability in Zyxel Gs1900-8 Firmware. Its CVSS base score is 6.7 (Medium).
Operationally, ranked at the 28.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-48707
Vulnerability details
The privilege escalation vulnerability in the Zyxel GS1900-8 firmware version V2.70(AAHH.3) and the GS1900-8HP firmware version V2.70(AAHI.3) could allow an authenticated, local attacker with administrator privileges to execute some system commands as 'root' on a vulnerable device via SSH.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Policy addresses roles, responsibilities, and privilege management to prevent improper privilege assignments.
Implements core proper privilege management by restricting to only required rights.
Baseline configuration documents and controls privilege assignments, making improper privilege management harder to introduce or sustain.
Requiring the most restrictive settings instead of defaults prevents incorrect default permissions on resources.
Defines roles and responsibilities to ensure proper privilege management during configuration changes.
Designates roles and review processes for managing physical privileges and access rights.
Tailoring explicitly overrides or scopes default permission assignments in the baseline to match the system's actual risk and operational needs.
Centralized privilege assignment and oversight prevent ad-hoc or excessive privilege grants that occur when each system is configured independently.