VDB-5470 · CVE-2012-2488 · BID 53728

Cisco IOS XR up to 4.2.0 IP Packet Parser input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability was found in Cisco IOS XR up to 4.2.0 (Router Operating System). It has been declared as critical. This vulnerability affects an unknown part of the component IP Packet Parser. 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 availability. CVE summarizes:

Cisco IOS XR before 4.2.1 on ASR 9000 series devices and CRS series devices allows remote attackers to cause a denial of service (packet transmission outage) via a crafted packet, aka Bug IDs CSCty94537 and CSCtz62593.

The weakness was published 05/30/2012 with Cisco as cisco-sa-20120530-iosxr as confirmed advisory (Website). The advisory is available at tools.cisco.com. The public release has been coordinated with the vendor. This vulnerability was named CVE-2012-2488 since 05/07/2012. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 71435 (Cisco IOS XR Software Route Processor Denial of Service Vulnerability (cisco-sa-20120530-iosxr)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading to version 4.2.1 eliminates this vulnerability. The upgrade is hosted for download at tools.cisco.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (71435). Additional details are provided at packetstormsecurity.org.

Productinfo

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Vendor

Name

Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 71435
Nessus Name: Cisco IOS XR Software Route Processor Denial of Service Vulnerability (cisco-sa-20120530-iosxr)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: IOS XR 4.2.1

Timelineinfo

05/07/2012 🔍
05/30/2012 +23 days 🔍
05/30/2012 +0 days 🔍
05/30/2012 +0 days 🔍
05/30/2012 +0 days 🔍
05/30/2012 +0 days 🔍
05/30/2012 +0 days 🔍
05/31/2012 +1 days 🔍
05/31/2012 +0 days 🔍
05/31/2012 +0 days 🔍
06/05/2012 +5 days 🔍
12/14/2013 +557 days 🔍
03/25/2021 +2658 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20120530-iosxr
Organization: Cisco
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-2488 (🔍)
SecurityTracker: 1027104 - Cisco IOS XR Packet Processing Flaw Lets Remote Users Deny Service on Certain Devices
Vulnerability Center: 35232 - Cisco IOS XR 4.0.3 Before 4.2.1 Remote Denial of Service Vulnerability via a Crafted Packet, High
SecurityFocus: 53728 - Cisco IOS XR Software Route Processor Denial of Service Vulnerability
Secunia: 49329 - Cisco IOS XR Denial of Service Vulnerability, Moderately Critical
OSVDB: 82457

scip Labs: https://www.scip.ch/en/?labs.20150108
Misc.: 🔍

Entryinfo

Created: 06/05/2012 12:27
Updated: 03/25/2021 08:53
Changes: 06/05/2012 12:27 (73), 04/13/2017 12:54 (10), 03/25/2021 08:53 (3)
Complete: 🔍

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