Linksys WRT54GC 1.02.5/1.02.8/1.05.7 Web Management Interface memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Linksys WRT54GC 1.02.5/1.02.8/1.05.7. Affected is an unknown function of the component Web Management Interface. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2011-0352. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linksys WRT54GC 1.02.5/1.02.8/1.05.7 (Router Operating System). It has been rated as critical. Affected by this issue is an unknown function of the component Web Management Interface. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in the web-based management interface on the Cisco Linksys WRT54GC router with firmware before 1.06.1 allows remote attackers to cause a denial of service (device crash) via a long string in a POST request.

The weakness was released 01/21/2011 by Yuji Ukai with Fourteenforty Research Institute (Website). The advisory is shared for download at fourteenforty.jp. This vulnerability is handled as CVE-2011-0352 since 01/07/2011. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43205 (Cisco Linksys WRT54GC HTTP Request Buffer Overflow Vulnerability).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at tools.cisco.com. The best possible mitigation is suggested to be upgrading to the latest version. 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 X-Force (64850), SecurityFocus (BID 45943†), OSVDB (70624†), Secunia (SA43017†) and Vulnerability Center (SBV-35540†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: tools.cisco.com

Timelineinfo

01/07/2011 🔍
01/13/2011 +6 days 🔍
01/13/2011 +0 days 🔍
01/21/2011 +8 days 🔍
01/21/2011 +0 days 🔍
01/21/2011 +0 days 🔍
01/24/2011 +2 days 🔍
01/24/2011 +0 days 🔍
02/14/2011 +21 days 🔍
07/17/2012 +519 days 🔍
01/19/2025 +4569 days 🔍

Sourcesinfo

Vendor: linksys.com

Advisory: fourteenforty.jp
Researcher: Yuji Ukai
Organization: Fourteenforty Research Institute
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-0352 (🔍)
GCVE (CVE): GCVE-0-2011-0352
GCVE (VulDB): GCVE-100-4256
X-Force: 64850 - Linksys WRT54GC interface buffer overflow, High Risk
SecurityFocus: 45943 - Linksys WRT54GC Remote Buffer Overflow Vulnerability
Secunia: 43017 - Linksys WRT54GC Web Management Interface Buffer Overflow Vulnerability, Moderately Critical
OSVDB: 70624 - Linksys WRT54GC HTTP POST Request Remote Overflow
Vulnerability Center: 35540 - Cisco Linksys WRT54GC Router With Firmware Before 1.06.1 Buffer Overflow Allows Remote DoS, High
Vupen: ADV-2011-0205

Entryinfo

Created: 02/14/2011 12:41
Updated: 01/19/2025 06:00
Changes: 02/14/2011 12:41 (72), 04/14/2017 14:14 (11), 01/19/2025 06:00 (18)
Complete: 🔍
Cache ID: 216:CB2:103

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