What is the severity of CVE-2012-0339?

CVE-2012-0339 is classified as a high severity vulnerability due to the potential for unauthorized remote access.

How do I fix CVE-2012-0339?

To fix CVE-2012-0339, upgrade to a Cisco IOS version that is not vulnerable, such as versions later than 12.4 and 15.0.

What systems are affected by CVE-2012-0339?

CVE-2012-0339 affects Cisco IOS versions 12.2 through 12.4 and 15.0.

Can CVE-2012-0339 be exploited remotely?

Yes, CVE-2012-0339 can be exploited remotely by attackers using standard TELNET clients.

What attack vector is associated with CVE-2012-0339?

The attack vector for CVE-2012-0339 involves exploiting the improper enforcement of access-class commands in the IOS.

Vulnerability/
CVE-2012-0339

medium

CWE

2/5/2012

6/8/2024

CVE-2012-0339: Input Validation

First published: Wed May 02 2012(Updated: )

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.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOS	=12.2
Cisco IOS	=12.3
Cisco IOS	=12.4
Cisco IOS	=15.0

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2012-0339?
CVE-2012-0339 is classified as a high severity vulnerability due to the potential for unauthorized remote access.
How do I fix CVE-2012-0339?
To fix CVE-2012-0339, upgrade to a Cisco IOS version that is not vulnerable, such as versions later than 12.4 and 15.0.
What systems are affected by CVE-2012-0339?
CVE-2012-0339 affects Cisco IOS versions 12.2 through 12.4 and 15.0.
Can CVE-2012-0339 be exploited remotely?
Yes, CVE-2012-0339 can be exploited remotely by attackers using standard TELNET clients.
What attack vector is associated with CVE-2012-0339?
The attack vector for CVE-2012-0339 involves exploiting the improper enforcement of access-class commands in the IOS.

collector/nvd-index
agent/references
agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/severity
agent/last-modified-date
agent/author
agent/weakness
agent/tags
agent/description
agent/first-publish-date
agent/event
agent/source
vendor/cisco
canonical/cisco ios
version/cisco ios/12.2
version/cisco ios/12.3
version/cisco ios/12.4
version/cisco ios/15.0

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Frequently Asked Questions

What is the severity of CVE-2012-0339?
CVE-2012-0339 is classified as a high severity vulnerability due to the potential for unauthorized remote access.
How do I fix CVE-2012-0339?
To fix CVE-2012-0339, upgrade to a Cisco IOS version that is not vulnerable, such as versions later than 12.4 and 15.0.
What systems are affected by CVE-2012-0339?
CVE-2012-0339 affects Cisco IOS versions 12.2 through 12.4 and 15.0.
Can CVE-2012-0339 be exploited remotely?
Yes, CVE-2012-0339 can be exploited remotely by attackers using standard TELNET clients.
What attack vector is associated with CVE-2012-0339?
The attack vector for CVE-2012-0339 involves exploiting the improper enforcement of access-class commands in the IOS.