CVE-2012-0339 Auth bypass in n/a
Remote attackers can bypass access-class restrictions to establish TELNET connections from arbitrary IPs due to improper handling of the vrf-also keyword.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2012-0339?
CVE-2012-0339 is a medium-severity authentication bypass vulnerability in Cisco Ios, published on 2 May 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cisco IOS 12.2 through 12.4 and 15.0 does not recognize the vrf-also keyword during enforcement of access-class commands, which allows remote attackers to establish TELNET connections from arbitrary source IP addresses via a standard TELNET client, aka Bug ID CSCsi77774.
Weakness: CWE-20
Which versions are affected by CVE-2012-0339?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2012-0339?
No fix has been published for CVE-2012-0339 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2012-0339 being exploited?
There is no known exploitation of CVE-2012-0339 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios
- CVE-2017-12240 Cisco IOS and IOS XE Software DHCP Remote Code Execution
- CVE-2017-3881 Cisco IOS and IOS XE Remote Code Execution
- CVE-2018-0167 Cisco IOS, XR, and XE Software Buffer Overflow
- CVE-2017-6736 Cisco IOS and IOS XE Software SNMP Remote Code Execution
- CVE-2017-6737 Cisco IOS and IOS XE Software SNMP Remote Code Execution
Sources
Also known as GHSA-48mq-ghr6-3cc9.