Cisco LEAP Authentication Mechanism improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Cisco LEAP. This impacts an unknown function of the component Authentication Mechanism. This manipulation causes improper authentication. This vulnerability is registered as CVE-2003-1096. Furthermore, an exploit is available. Additional authentication should be implemented.

Detailsinfo

A vulnerability was found in Cisco LEAP (affected version unknown). It has been declared as very critical. Affected by this vulnerability is an unknown functionality of the component Authentication Mechanism. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Cisco LEAP challenge/response authentication mechanism uses passwords in a way that is susceptible to dictionary attacks, which makes it easier for remote attackers to gain privileges via brute force password guessing attacks.

The weakness was published 08/03/2003 by Joshua Wright as confirmed advisory (CERT.org). The advisory is shared at kb.cert.org. This vulnerability is known as CVE-2003-1096 since 03/11/2005. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/18/2024).

A public exploit has been developed in ANSI C and been published 9 months after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.

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

The vulnerability is also documented in the databases at X-Force (12804), Exploit-DB (23212), SecurityFocus (BID 8755†) and OSVDB (15209†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.0

VulDB Base Score: 9.8
VulDB Temp Score: 9.0
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: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Authentication
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

08/03/2003 🔍
10/03/2003 +61 days 🔍
12/31/2003 +89 days 🔍
04/06/2004 +97 days 🔍
03/11/2005 +339 days 🔍
03/15/2005 +3 days 🔍
08/22/2014 +3447 days 🔍
11/18/2024 +3741 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: kb.cert.org
Researcher: Joshua Wright
Status: Confirmed

CVE: CVE-2003-1096 (🔍)
GCVE (CVE): GCVE-0-2003-1096
GCVE (VulDB): GCVE-100-21085
CERT: 🔍
X-Force: 12804
SecurityFocus: 8755 - Cisco LEAP Password Disclosure Weakness
OSVDB: 15209 - Cisco LEAP Challenge/Response Authentication Weakness

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

Entryinfo

Created: 08/22/2014 13:16
Updated: 11/18/2024 15:58
Changes: 08/22/2014 13:16 (53), 07/04/2017 08:02 (9), 09/12/2024 16:52 (17), 11/18/2024 15:58 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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