Cisco IOS up to 12.4xb denial of service

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, was found in Cisco IOS (Router Operating System). This affects some unknown processing. 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 confidentiality, and integrity. The summary by CVE is:

The Intrusion Prevention System (IPS) feature for Cisco IOS 12.4XE to 12.3T allows remote attackers to bypass IPS signatures that use regular expressions via fragmented packets.

The bug was discovered 02/13/2007. The weakness was presented 02/13/2007 with Cisco (Website). The advisory is shared at vupen.com. This vulnerability is uniquely identified as CVE-2007-0917 since 02/13/2007. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/14/2019).

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 24739 (Cisco IOS Intrusion Prevention System (IPS) Multiple Vulnerabilities (CSCsa53334, CSCsg15598)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO, running in the context l and relying on port 161. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43184 (Cisco IOS Multiple IPS Vulnerabilities (cisco-sa-20070213-iosips)).

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 X-Force (32473) and Tenable (24739). See 2938 for similar entry.

Productinfo

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Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

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

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VulDB Base Score: 🔍
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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: 🔍

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Nessus ID: 24739
Nessus Name: Cisco IOS Intrusion Prevention System (IPS) Multiple Vulnerabilities (CSCsa53334, CSCsg15598)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/13/2007 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/14/2007 +0 days 🔍
02/14/2007 +0 days 🔍
02/14/2007 +0 days 🔍
03/01/2007 +14 days 🔍
03/13/2015 +2934 days 🔍
07/14/2019 +1584 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: vupen.com
Organization: Cisco
Status: Confirmed

CVE: CVE-2007-0917 (🔍)
OVAL: 🔍

X-Force: 32473
SecurityTracker: 1017631
Vulnerability Center: 14286 - [cisco-sa-20070213-iosips] Cisco IPS in IOS 12.3T to 12.4XE Remote Bypassing of IPS Signatures, Medium
SecurityFocus: 22549 - Cisco IOS Intrusion Prevention System Multiple Vulnerabilities
Secunia: 24142 - Cisco IOS IPS Security Bypass and Denial of Service, Moderately Critical
OSVDB: 33052 - Cisco IOS IPS Fragmented Packet Signature Bypass
Vupen: ADV-2007-0597

See also: 🔍

Entryinfo

Created: 03/13/2015 12:16
Updated: 07/14/2019 16:38
Changes: 03/13/2015 12:16 (75), 07/14/2019 16:38 (8)
Complete: 🔍

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