Information disclosure when handling IKEv1 packets in Cisco products



Published: 2016-09-16 | Updated: 2019-03-16
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-6415
CWE-ID CWE-200
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
Subscribe
Cisco IOS
Operating systems & Components / Operating system

Cisco IOS XR
Operating systems & Components / Operating system

Cisco IOS XE
Operating systems & Components / Operating system

Vendor
Cisco Systems, Inc

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU532

Risk: High

CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:H/RL:U/RC:C]

CVE-ID: CVE-2016-6415

CWE-ID: CWE-200 - Information exposure

Exploit availability: Yes

Description

The vulnerability allows a remote user to access potentially sensitive information on the target system.

The weakness exists due to insufficient checks of IKE packats when handling ISAKMP requests. By sending specially crafted IKEv1 packets  to the IKE service via IPv4 or IPv6 a malicious user can obtain memory contents.

Successful exploitation of the vulnerability leads to confidential information disclosure on the vulnerable system.

Note: this vulnerability was being actively exploited in the wild. It was disclosed as part of Equation Group Leak and is reffered as BENIGNCERTAIN exploit.

Mitigation

Update to version 5.3.x.

Vulnerable software versions

Cisco IOS: 12.0 - 15.2.4 ea

Cisco IOS XR: 5.1.0 - 6.0.1

Cisco IOS XE: 3.15S - 3.17S

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160916-ikev1


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?

Yes. This vulnerability is being exploited in the wild.



###SIDEBAR###