CVE-2018-0100 XML external entity in Cisco AnyConnect

What is CVE-2018-0100?

CVE-2018-0100 is a medium-severity vulnerability in Cisco Anyconnect Secure Mobility Client, published on 18 Jan 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the Profile Editor of the Cisco AnyConnect Secure Mobility Client could allow an unauthenticated, local attacker to have read and write access to information stored in the affected system. The vulnerability is due to improper handling of the XML External Entity (XXE) entries when parsing an XML file. An attacker could exploit this vulnerability by injecting a crafted XML file with malicious entries, which could allow the attacker to read and write files. Cisco Bug IDs: CSCvg19341.

Weakness: CWE-611

Which versions are affected by CVE-2018-0100?

It affects 1 product.

Products include Cisco Anyconnect Secure Mobility Client.

How do I fix CVE-2018-0100?

No fix has been published for CVE-2018-0100 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-0100 being exploited?

There is no known exploitation of CVE-2018-0100 in the wild and no public exploit code.

Other vulnerabilities in Cisco Anyconnect Secure Mobility Client

• CVE-2020-3433 Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Exploited High 7.8
• CVE-2020-3153 Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Exploited Medium 6.5
• CVE-2012-3088 Security feature bypass in n/a Critical 9.3
• CVE-2012-2493 Code injection in n/a Critical 9.3
• CVE-2011-2040 Code injection in n/a Critical 9.3

All Cisco Anyconnect Secure Mobility Client vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8f5h-g89q-h3fx.