Vulnerability identifier: #VU8681
Vulnerability risk: Low
CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2017-12228
CWE-ID:
CWE-295
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco IOS
Operating systems & Components /
Operating system
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to conduct man-in-the-middle attack.
The weakness exists due to insufficient certificate validation. A remote attacker can supply a crafted certificate, conduct MiTM attack and decrypt confidential information on user connections to the affected software.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Cisco IOS: 12.4 - 12.4.24 T4, 15.0, 15.1(2.0) - 15.1, 15.2E - 15.2(5c)E, 15.3S - 15.3, 15.4S - 15.4.2 S, 15.5SN - 15.5.3 S2.9
External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-pnp
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.