Improper input validation in Cisco Secure Access Control System
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
A vulnerability in the ACS Report component of Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected system. Commands executed by the attacker are processed at the targeted user's privilege level. The vulnerability is due to insufficient validation of the Action Message Format (AMF) protocol. An attacker could exploit this vulnerability by sending a crafted AMF message that contains malicious code to a targeted user. A successful exploit could allow the attacker to execute arbitrary commands on the ACS device. This vulnerability affects all releases of Cisco Secure ACS prior to Release 5.8 Patch 7. Cisco Bug IDs: CSCve69037.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco Secure Access Control System | Cisco Secure Access Control System | — | No fix listed | CNA |
- Cisco Secure Access Control System Vendor— Affected Cisco Secure Access Control System Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:secure_access_control_system:*:*:*:*:*:*:*:* | before 5.8 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_system:5.8:*:*:*:*:*:*:* | 5.8 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_system:5.8:p1:*:*:*:*:*:* | 5.8 p1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_system:5.8:p2:*:*:*:*:*:* | 5.8 p2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_system:5.8:p3:*:*:*:*:*:* | 5.8 p3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_system:5.8:p4:*:*:*:*:*:* | 5.8 p4 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_system:5.8:p6:*:*:*:*:*:* | 5.8 p6 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_access_control_system:5.8\(0.8\):*:*:*:*:*:*:* | 5.8(0.8) | Vulnerable | Cisco |
- cpe:2.3:a:cisco:secure_access_control_system:*:*:*:*:*:*:*:* Versions before 5.8 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_system:5.8:*:*:*:*:*:*:* Versions 5.8 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_system:5.8:p1:*:*:*:*:*:* Versions 5.8 p1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_system:5.8:p2:*:*:*:*:*:* Versions 5.8 p2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_system:5.8:p3:*:*:*:*:*:* Versions 5.8 p3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_system:5.8:p4:*:*:*:*:*:* Versions 5.8 p4 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_system:5.8:p6:*:*:*:*:*:* Versions 5.8 p6 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_access_control_system:5.8\(0.8\):*:*:*:*:*:*:* Versions 5.8(0.8) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0253
- 2026-10-03 Alias added: GHSA-99xc-j93w-f7qr
References
More Cisco Secure Access Control System vulnerabilities
- TI-2018-00118 Improper input validation in Cisco Secure Access Control System KEVCVSS 3.1CRITICAL 9.8
- TI-2014-00618 The RMI interface in Cisco Secure Access Control System (ACS) 5.x before 5.5 does not… CVSS 2.0HIGH 10.0
- TI-2014-00620 The web interface in Cisco Secure Access Control System (ACS) 5.x before 5.4 Patch 3… CVSS 2.0HIGH 10.0
- TI-2014-00619 The RMI interface in Cisco Secure Access Control System (ACS) 5.x before 5.5 does not… CVSS 2.0HIGH 9.0
- TI-2011-00829 The web-based management interface in Cisco Secure Access Control System (ACS) 5.1 before… CVSS 2.0MEDIUM 5.0
- TI-2017-02938 Information disclosure in Cisco Secure Access Control System CVSS 3.0HIGH 7.5
Sources
- CVE-2018-0253 · CVE Program
- CVE-2018-0253 · NVD
- FIRST EPSS
- GHSA-99xc-j93w-f7qr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences