Vulnerability identifier: #VU87894
Vulnerability risk: Low
CVSSv3.1: 4.9 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Cisco IOS XE
Operating systems & Components /
Operating system
Vendor:
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to the incorrect handling of specific ingress traffic when flow control hardware is enabled on the AUX port. A local user can reverse telnet to the AUX port and send specific data after connecting to cause a denial of service condition on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
External links
http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aux-333WBz8f
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.