Cisco IOS ISM Module ISR G2 improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Cisco IOS (Router Operating System) (affected version not known). This issue affects some unknown functionality of the component ISM Module ISR G2. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is availability. The summary by CVE is:

The ISM module in Cisco IOS on ISR G2 routers does not properly handle authentication-header packets, which allows remote authenticated users to cause a denial of service (module reload) via a series of malformed packets, aka Bug ID CSCub92025.

The weakness was presented 05/06/2013 with Cisco as CSCub92025 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2013-1241 since 01/11/2013. The exploitation is known to be easy. The attack may be initiated remotely. A simple authentication is required for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 66762 (Cisco IOS ISM Module for ISR G2 Authentication Header DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (84114) and Tenable (66762).

Productinfo

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Vendor

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 66762
Nessus Name: Cisco IOS ISM Module for ISR G2 Authentication Header DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

01/11/2013 🔍
05/06/2013 +115 days 🔍
05/06/2013 +0 days 🔍
05/06/2013 +0 days 🔍
05/07/2013 +1 days 🔍
05/08/2013 +1 days 🔍
05/13/2013 +5 days 🔍
05/24/2013 +11 days 🔍
05/26/2013 +2 days 🔍
06/03/2013 +8 days 🔍
05/10/2021 +2898 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCub92025
Organization: Cisco
Status: Confirmed

CVE: CVE-2013-1241 (🔍)
X-Force: 84114
Vulnerability Center: 39684 - Cisco IOS on ISR G2 Routers ISM Modules Improper Authentication-Header Packets Handling Allows Remote DoS, Medium
SecurityFocus: 59774 - Cisco IOS ISM Module CVE-2013-1241 Denial of Service Vulnerability
Secunia: 53328 - Cisco ISM module for ISR G2 Authentication Header Packet Processing Denial of Service Vuln, Less Critical
OSVDB: 93091

Entryinfo

Created: 05/13/2013 16:50
Updated: 05/10/2021 15:53
Changes: 05/13/2013 16:50 (69), 04/30/2017 12:36 (4), 05/10/2021 15:53 (3)
Complete: 🔍

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