Cyber Resilience

CVE-2023-20008

Cisco Telepresence Collaboration Endpoint 8.0.0 … 9.9.4

Published
20 January 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 4.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
EPSS Score 0.0019 9th percentile
Risk Priority 34 floored blend · peak EPSS

Summary

CVE-2023-20008 is a medium-severity Link Following (CWE-59) vulnerability in Cisco Telepresence Collaboration Endpoint. Its CVSS base score is 4.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception (T1034); ranked at the 9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

A vulnerability in the CLI of Cisco TelePresence CE and RoomOS Software could allow an authenticated, local attacker to overwrite arbitrary files on the local system of an affected device. This vulnerability is due to improper access controls on files…

more

that are in the local file system. An attacker could exploit this vulnerability by placing a symbolic link in a specific location on the local file system of an affected device. A successful exploit could allow the attacker to overwrite arbitrary files on the affected device.

CWE(s)
CWE-59NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise Techniques

T1034 Path Interception Persistence
**This technique has been deprecated.
attack.mitre.org →
T1547.009 Shortcut Modification Persistence
Adversaries may create or modify shortcuts that can execute a program during system boot or user login.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-20004Same product: Cisco Roomos
CVE-2023-20091Same product: Cisco Roomos
CVE-2023-20090Same product: Cisco Roomos
CVE-2023-20094Same product: Cisco Roomos
CVE-2023-20002Same product: Cisco Roomos
CVE-2025-20329Same product: Cisco Roomos
CVE-2023-20093Same product: Cisco Roomos
CVE-2023-20092Same product: Cisco Roomos
CVE-2023-37206Shared CWE-59
CVE-2025-59241Shared CWE-59

Affected Assets

cisco
roomos
10.11.3.0, 10.11.5.2, 10.15.3.0, 10.3.2.0, 10.3.4.0
cisco
telepresence collaboration endpoint
8.0.0, 8.0.1, 8.1.0, 8.1.1, 8.2.0
cisco
telepresence tc
7.3.13, 7.3.21, 7.3.5, 7.3.6, 7.3.7

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V15.4.2

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require code to validate paths and avoid unsafe link following.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect link-following flaws before release.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC practices can mandate link-resolution checks and canonicalization before file access.

A.8.26 Application security requirements partial match
prevents

Application security requirements can explicitly require safe handling of symbolic links and path traversal.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles include input validation and safe file-access design patterns.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly address canonicalization and symlink attacks during implementation.

A.8.3 Information access restriction none match
mitigates

Access-control rules can limit which files are reachable, reducing exposure to malicious links.

References