Full Report
Cisco has released security updates to patch a critical vulnerability in the Unified Contact Center Express (UCCX) software, which could enable attackers to execute commands with root privileges. [...]
Analysis Summary
# Vulnerability: Critical Remote Command Execution in Cisco UCCX with Root Privileges
## CVE Details
- CVE ID: CVE-2025-20354
- CVSS Score: *(Score not explicitly provided in the text; assume **Critical** based on description)*
- CWE: Improper Authentication (Implied)
## Affected Systems
- Products: Cisco Unified Contact Center Express (UCCX) software
- Versions: 12.5 SU3 and earlier, 15.0 (prior to fixed releases)
- Configurations: Affects the Java Remote Method Invocation (RMI) process, regardless of device configuration.
## Vulnerability Description
This vulnerability exists in the Java RMI process of Cisco Unified CCX due to improper authentication mechanisms associated with specific features. An unauthenticated attacker can exploit this flaw by uploading a crafted file via the Java RMI process. A successful exploit allows the attacker to execute arbitrary commands on the underlying operating system with **root privileges**.
## Exploitation
- Status: PoC available *(Not explicitly stated, but mentioned alongside another vulnerability that might have one)* / Exploitation status is **Not explicitly confirmed as exploited in the wild**, but the risk is high.
- Complexity: Low (Unauthenticated remote access is implied by the description "unauthenticated attackers")
- Attack Vector: Network
## Impact
- Confidentiality: High (Root access allows access to all system data)
- Integrity: High (Ability to execute arbitrary commands as root)
- Availability: High (Ability to execute arbitrary commands as root)
## Remediation
### Patches
- Cisco Unified CCX Release 12.5 SU3: Upgrade to **12.5 SU3 ES07**
- Cisco Unified CCX Release 15.0: Upgrade to **15.0 ES01**
### Workarounds
- No specific workarounds were detailed in the provided summary text, though the primary advice is immediate upgrade.
## Detection
- Detection methods are not explicitly detailed, but network monitoring for unusual file uploads via the RMI process or unauthorized command execution attempts on UCCX hosts should be prioritized.
## References
- Vendor Advisory (Implied): Cisco Security Advisory (Referenced in the text)
- Relevant Links:
- bleepingcomputer com/news/security/critical-cisco-uccx-flaw-lets-hackers-run-commands-as-root/