Cisco IOS up to 12.3yt denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Cisco IOS up to 12.3yt. This affects an unknown function. This manipulation causes denial of service. This vulnerability is registered as CVE-2009-2868. No exploit is available.

Detailsinfo

A vulnerability was found in Cisco IOS up to 12.3yt (Router Operating System). It has been declared as critical. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Unspecified vulnerability in Cisco IOS 12.2 through 12.4, when certificate-based authentication is enabled for IKE, allows remote attackers to cause a denial of service (Phase 1 SA exhaustion) via crafted requests, aka Bug IDs CSCsy07555 and CSCee72997.

The weakness was published 09/28/2009 with Cisco (Website). The advisory is shared at vupen.com. This vulnerability is known as CVE-2009-2868. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/27/2025).

The vulnerability scanner Nessus provides a plugin with the ID 49044 (Cisco IOS Software Internet Key Exchange Resource Exhaustion 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 43168 (Cisco IOS Software Internet Key Exchange Resource Exhaustion Vulnerability (cisco-sa-20090923-ipsec)).

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 Tenable (49044), SecurityFocus (BID 36497†) and Vulnerability Center (SBV-23564†). Similar entries are available at VDB-50249, VDB-50248, VDB-50247 and VDB-50246. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
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: 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: 🔍

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Nessus ID: 49044
Nessus Name: Cisco IOS Software Internet Key Exchange Resource Exhaustion 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 🔍
09/24/2009 +1 days 🔍
09/28/2009 +4 days 🔍
09/28/2009 +0 days 🔍
09/01/2010 +338 days 🔍
03/18/2015 +1659 days 🔍
03/27/2025 +3662 days 🔍

Sourcesinfo

Vendor: cisco.com

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

CVE: CVE-2009-2868 (🔍)
GCVE (CVE): GCVE-0-2009-2868
GCVE (VulDB): GCVE-100-50245
SecurityFocus: 36497 - Cisco IOS Software Internet Key Exchange Resource Exhaustion Denial of Service Vulnerability
Vulnerability Center: 23564 - [cisco-sa-20090923-ipsec] Cisco IOS Remote IKE Resource Exhaustion Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 03/27/2025 08:12
Changes: 03/18/2015 15:15 (54), 02/15/2017 09:18 (9), 08/23/2021 09:31 (4), 08/23/2021 09:36 (1), 03/27/2025 08:12 (16)
Complete: 🔍
Cache ID: 216::103

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