Cisco IOS up to 12.4 SIP Request denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5$0-$5k0.00

A vulnerability, which was classified as critical, was found in Cisco IOS up to 12.4 (Router Operating System). Affected is an unknown functionality of the component SIP Request Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

Cisco IOS after 12.3(14)T, 12.3(8)YC1, 12.3(8)YG, and 12.4, with voice support and without Session Initiated Protocol (SIP) configured, allows remote attackers to cause a denial of service (crash) by sending a crafted packet to port 5060/UDP.

The bug was discovered 01/31/2007. The weakness was disclosed 01/31/2007 (Website). The advisory is shared for download at cisco.com. This vulnerability is traded as CVE-2007-0648 since 01/31/2007. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 24740 (Cisco IOS SIP Packet Handling Remote DoS (CSCsh58082)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO, running in the context r and relying on port 161.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cisco.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (31990) and Tenable (24740). The entry 2888 is pretty similar.

Productinfo

Type

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: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 24740
Nessus Name: Cisco IOS SIP Packet Handling Remote DoS (CSCsh58082)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: cisco.com

Timelineinfo

01/31/2007 🔍
01/31/2007 +0 days 🔍
01/31/2007 +0 days 🔍
01/31/2007 +0 days 🔍
01/31/2007 +0 days 🔍
01/31/2007 +0 days 🔍
01/31/2007 +0 days 🔍
01/31/2007 +0 days 🔍
01/31/2007 +0 days 🔍
01/31/2007 +0 days 🔍
02/02/2007 +1 days 🔍
03/01/2007 +27 days 🔍
07/14/2019 +4518 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-0648 (🔍)
OVAL: 🔍

X-Force: 31990 - Cisco IOS SIP packet handling denial of service, Medium Risk
SecurityTracker: 1017575
Vulnerability Center: 14184 - [cisco-sa-20070131-sip] Cisco IOS Denial of Service via Crafted SIP Packets, Low
SecurityFocus: 22330 - Cisco IOS SIP Packet Handling Remote Denial Of Service Vulnerability
Secunia: 23978 - Cisco IOS SIP Packet Handling Reload Denial of Service, Moderately Critical
OSVDB: 33051 - Cisco IOS SIP Packet Handling Reload DoS
Vupen: ADV-2007-0428

See also: 🔍

Entryinfo

Created: 02/02/2007 15:41
Updated: 07/14/2019 10:39
Changes: 02/02/2007 15:41 (92), 07/14/2019 10:39 (2)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!