CVE-2021-44467 - CVE House
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Status published Medium CVE-2021-44467

spx_restservice KillDupUsr_func Broken Access Control

Vulnerability Description

A broken access control vulnerability in the KillDupUsr_func function of spx_restservice allows an attacker to arbitrarily terminate active sessions of other users, causing a Denial-of-Service (DoS) condition, if an input parameter is correctly guessed. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Andrea Palanca of Nozomi Networks found this bug during a security research activity.

References

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CVE-2021-44776
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CVE-2021-44769
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Medium 4.9

Affected Vendor

Affected Software

IAC-AST2500A
Vulnerable Versions:
1.10.0

Timeline

Official Publish: October 24th, 2022
Last Modified: May 7th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses (CWE)

CWE-284

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1078 Valid Accounts
Persistence
T1213 Data from Information Repositories
Collection
T1565.002 Stored Data Manipulation
Impact