Linksys bootp Memory information disclosure

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 (≈)
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CTI Interest Score
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4.1$0-$5k0.00

A vulnerability was found in Linksys (the affected version is unknown). It has been classified as problematic. This affects an unknown code of the component bootp. The manipulation with an unknown input leads to a information disclosure vulnerability (Memory). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware version 1.45.7, does not properly clear previously used buffer contents in a BOOTP reply packet, which allows remote attackers to obtain sensitive information.

The weakness was presented 05/22/2004 by Jon Hart (Website). It is possible to read the advisory at marc.info. This vulnerability is uniquely identified as CVE-2004-0580. The exploitability is told to be easy. The attack needs to be initiated within the local network. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

A public exploit has been developed in ANSI C and been published before and not just after the advisory. The exploit is shared for download at packetstormsecurity.nl. 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.

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 vulnerability database at X-Force (16142). See 658 for similar entry.

Productinfo

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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: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Memory
Class: Information disclosure / Memory
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/13/2004 🔍
05/22/2004 +9 days 🔍
05/22/2004 +0 days 🔍
05/22/2004 +0 days 🔍
06/18/2004 +26 days 🔍
08/06/2004 +49 days 🔍
04/11/2016 +4266 days 🔍
07/13/2022 +2284 days 🔍

Sourcesinfo

Advisory: marc.info
Researcher: Jon Hart
Status: Not defined

CVE: CVE-2004-0580 (🔍)
X-Force: 16142
SecurityFocus: 10329 - Multiple Linksys Devices DHCP Information Disclosure and Denial of Service Vulnerability
Secunia: 11606
OSVDB: 6325 - Linksys BOOTP Remote Memory Information Disclosure

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

Entryinfo

Created: 04/11/2016 20:50
Updated: 07/13/2022 11:27
Changes: 04/11/2016 20:50 (53), 10/02/2018 08:58 (8), 07/13/2022 11:27 (3)
Complete: 🔍

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