CVEvulnerability

CVE-2018-0147

9.8 CRITICAL Known exploited Published 2018-03-08 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Cisco Secure Access Control System Java Deserialization Vulnerability — Cisco Secure Access Control System (ACS)

A vulnerability in Java deserialization used by Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. The vulnerability is due to insecure deserialization of user-supplied content by the affected software.

Added to KEV
2022-03-25
Remediation due
2022-04-15
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2018-0147
Status
Analyzed
Published
2018-03-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
10.0 HIGH — AV:N/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-20, CWE-502

Description

A vulnerability in Java deserialization used by Cisco Secure Access Control System (ACS) prior to release 5.8 patch 9 could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. The vulnerability is due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit this vulnerability by sending a crafted serialized Java object. An exploit could allow the attacker to execute arbitrary commands on the device with root privileges. Cisco Bug IDs: CSCvh25988.

Affected configurations

• cisco secure access control system 5.2\(0.3\)

Related

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-502 Deserialization of Untrusted Data weakness

References