Vulnerability identifier: #VU13219

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0334

CWE-ID: CWE-295

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco AnyConnect Secure Mobility Client
Client/Desktop applications / Other client software

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists in the certificate management subsystem due to improper use of Simple Certificate Enrollment Protocol and improper server certificate validation. A remote attacker can prepare malicious profile, localize files for Cisco AnyConnect to use, bypass the TLS certificate check and change the configuration profile, a certificate, or the localization data used by AnyConnect Secure Mobility Client.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Cisco AnyConnect Secure Mobility Client: 4.6.100

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-AnyConnect-c...

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.