Linksys Spa921 1.0.0 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.
6.9$0-$5k0.00

A vulnerability classified as critical has been found in Linksys Spa921 1.0.0. Affected is an unknown code. 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:

The HTTP server in Linksys SPA-921 VoIP Desktop Phone allows remote attackers to cause a denial of service (reboot) via (1) a long URL, or a long (2) username or (3) password during Basic Authentication.

The bug was discovered 10/04/2006. The weakness was shared 10/04/2006 by Shawn Merdinger (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability is traded as CVE-2006-7121 since 03/05/2007. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but an exploit is available.

After even before and not, there has been an exploit disclosed. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

It is possible to mitigate the problem by adding an authentication mechanism.

The vulnerability is also documented in the vulnerability database at X-Force (29349).

Productinfo

Vendor

Name

Version

License

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: 6.9

VulDB Base Score: 7.5
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Authentication
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/04/2006 🔍
10/04/2006 +0 days 🔍
10/04/2006 +0 days 🔍
10/04/2006 +0 days 🔍
10/11/2006 +6 days 🔍
10/11/2006 +0 days 🔍
03/05/2007 +144 days 🔍
03/05/2007 +0 days 🔍
03/05/2007 +0 days 🔍
12/06/2007 +276 days 🔍
03/13/2015 +2654 days 🔍
08/01/2019 +1602 days 🔍

Sourcesinfo

Vendor: linksys.com

Advisory: archives.neohapsis.com
Researcher: Shawn Merdinger
Status: Not defined

CVE: CVE-2006-7121 (🔍)
X-Force: 29349
Vulnerability Center: 17023 - Linksys SPA-921 VoIP Desktop Phone HTTP Server Allows Remote Attacker to Cause DoS, High
SecurityFocus: 20346 - Linksys SPA921 VoIP Phone HTTP Server Denial Of Service Vulnerabilities
Secunia: 22267 - Linksys SPA921 Long HTTP Requests Denial of Service, Less Critical
OSVDB: 29671 - Linksys SPA921 Long HTTP Request DoS

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/13/2015 12:16
Updated: 08/01/2019 10:46
Changes: 03/13/2015 12:16 (67), 08/01/2019 10:46 (1)
Complete: 🔍

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