Cisco IOS up to 12.4jdd 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

Summaryinfo

A vulnerability has been found in Cisco IOS up to 12.4jdd and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to denial of service. This vulnerability is traded as CVE-2009-2872. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco IOS up to 12.4jdd (Router Operating System). This issue affects an unknown part. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.

The weakness was shared 09/23/2009 with Cisco (Website). The advisory is shared at vupen.com. The identification of this vulnerability is CVE-2009-2872. The exploitation is known to be easy. The attack may be initiated remotely. A simple authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 49048 (Cisco IOS Software Tunnels Vulnerability - Cisco Systems), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43172 (Cisco IOS Software Tunnels Vulnerability (cisco-sa-20090923-tunnels)).

A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (49048), SecurityFocus (BID 36500†), OSVDB (58333†) and Vulnerability Center (SBV-23559†). The entries VDB-50250, VDB-50248, VDB-50247 and VDB-50246 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.5
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
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 49048
Nessus Name: Cisco IOS Software Tunnels Vulnerability - Cisco Systems
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/19/2009 🔍
09/23/2009 +35 days 🔍
09/23/2009 +0 days 🔍
09/23/2009 +0 days 🔍
09/23/2009 +0 days 🔍
09/24/2009 +0 days 🔍
09/24/2009 +0 days 🔍
09/28/2009 +3 days 🔍
09/01/2010 +338 days 🔍
03/18/2015 +1659 days 🔍
08/23/2021 +2350 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: vupen.com⛔
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-2872 (🔍)
GCVE (CVE): GCVE-0-2009-2872
GCVE (VulDB): GCVE-100-50249
SecurityFocus: 36500 - Cisco IOS Software Tunnels Multiple Denial of Service Vulnerabilities
OSVDB: 58333 - Cisco IOS Cisco Express Forwarding Malformed Packet Handling Remote DoS (2009-2872)
Vulnerability Center: 23559 - [cisco-sa-20090923-tunnels] Cisco IOS Tunnels Multiple Denial of Service Vulnerabilities, High

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 08/23/2021 09:59
Changes: 03/18/2015 15:15 (60), 02/15/2017 09:16 (9), 08/23/2021 09:55 (4), 08/23/2021 09:59 (1)
Complete: 🔍
Cache ID: 216:4F5:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!