Cisco IOS 12.2/12.3/12.4/15.0 Telnet Client input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Cisco IOS 12.2/12.3/12.4/15.0 and classified as critical. This vulnerability affects unknown code of the component Telnet Client. This manipulation causes input validation. The identification of this vulnerability is CVE-2012-0339. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in Cisco IOS 12.2/12.3/12.4/15.0 (Router Operating System). Affected by this vulnerability is an unknown part of the component Telnet Client. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity. The summary by CVE is:

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.

The weakness was shared 05/02/2012 (Website). It is possible to read the advisory at securitytracker.com. This vulnerability is known as CVE-2012-0339 since 01/04/2012. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (75410), SecurityFocus (BID 78289†), SecurityTracker (ID 1027005†) and Vulnerability Center (SBV-54760†). The entries VDB-60681, VDB-60678, VDB-60674 and VDB-60673 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/04/2012 🔍
01/04/2012 +0 days 🔍
05/02/2012 +119 days 🔍
05/02/2012 +0 days 🔍
05/02/2012 +0 days 🔍
03/23/2015 +1055 days 🔍
12/03/2015 +255 days 🔍
05/10/2018 +889 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: securitytracker.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-0339 (🔍)
GCVE (CVE): GCVE-0-2012-0339
GCVE (VulDB): GCVE-100-60679
X-Force: 75410
SecurityFocus: 78289 - IOS CVE-2012-0339 Remote Security Vulnerability
SecurityTracker: 1027005
Vulnerability Center: 54760 - Cisco IOS Remote Unspecified Vulnerability due to a Flaw in Access-Class Commands Enforcement, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 05/10/2018 11:02
Changes: 03/23/2015 16:50 (50), 05/10/2018 11:02 (11)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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