CVE-2016-6415: Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability
CVE-2016-6415 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2023-05-19
Cisco IOS, IOS XE, and IOS XR contain an information disclosure vulnerability in the IKEv1 implementation due to insufficient condition checks during Security Association (SA) negotiation. A remote, unauthenticated attacker can exploit this by sending a crafted IKEv1 request to retrieve sensitive memory contents from the affected device.
Yes. CVE-2016-6415 is known to be exploited in the wild, first recorded on 19 May 2023. Treat it as urgent.
How severe is CVE-2016-6415?
Critical severity, with a CVSS score of 7.5, published 19 May 2023.
Which products and versions are affected?
Cisco IOS 12.2 through 12.4, 15.0 through 15.6; Cisco IOS XE through 3.18S; Cisco IOS XR 4.3.x, 5.0.x through 5.2.x; Cisco PIX before 7.0.
Is there a fix for CVE-2016-6415?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2016-6415 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2016-6415?
Check whether you run Cisco IOS, Cisco IOS XE or Cisco IOS XR. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Cisco IOS 12.2 through 12.4, 15.0 through 15.6
Cisco IOS XE through 3.18S
Cisco IOS XR 4.3.x, 5.0.x through 5.2.x
Cisco PIX before 7.0
Timeline
2016-09-16: disclosed: Initial Cisco Security Advisory published
2023-05-19: kev added: Added to CISA Known Exploited Vulnerabilities Catalog