PT-2018-1126 · Cisco+1 · Cisco Secure Access Control System+1

Mikhail Klyuchnikov + 2 · Published 2018-03-07 · Updated 2025-10-28 · CVE-2018-0147

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Cisco Secure Access Control System versions prior to 5.8 patch 9

Description A vulnerability in Java deserialization used by the affected software could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. The issue is due to insecure deserialization of user-supplied content. An attacker could exploit this by sending a crafted serialized Java object, potentially allowing the execution of arbitrary commands on the device with root privileges.

Recommendations For versions prior to 5.8 patch 9, update to release 5.8 patch 9 or later to resolve the issue. As a temporary workaround, consider restricting access to the Java deserialization functionality to minimize the risk of exploitation.

Fix

Deserialization of Untrusted Data

RCE

Weakness Enumeration

CWE-502

CWE-20

Related Identifiers

BDU:2018-00552

CVE-2018-0147

Affected Products

Cisco Secure Access Control System

Java

References · 11

• https://bdu.fstec.ru/vul/2018-00552 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-0147 · Security Note
• https://osv.dev/vulnerability/CVE-2018-0147 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-acs2 · Vendor Advisory
• http://securitytracker.com/id/1040463 · Note
• http://securityfocus.com/bid/103328 · Note
• https://t.me/cvenotify/108759 · Telegram Post
• https://t.me/cveNotify/140640 · Telegram Post
• https://cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv · Note
• https://t.me/true_secator/3847 · Telegram Post
• https://cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0147 · Note