Cisco CBOS 2.3.8 Initial Sequence Number authentication spoofing

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Cisco CBOS 2.3.8. This affects an unknown part of the component Initial Sequence Number Handler. The manipulation results in authentication spoofing. This vulnerability is cataloged as CVE-2001-0751. Furthermore, there is an exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical has been found in Cisco CBOS 2.3.8. Affected is an unknown function of the component Initial Sequence Number Handler. The manipulation with an unknown input leads to a authentication spoofing vulnerability. CWE is classifying the issue as CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Cisco switches and routers running CBOS 2.3.8 and earlier use predictable TCP Initial Sequence Numbers (ISN), which allows remote attackers to spoof or hijack TCP connections.

The weakness was shared 10/18/2001 (Website). The advisory is available at cisco.com. This vulnerability is traded as CVE-2001-0751. 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 a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 10443 (TCP/IP Predictable ISN (Initial Sequence Number) Generation Weakness), which helps to determine the existence of the flaw in a target environment. It is assigned to the family General and running in the context r.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at X-Force (139), Exploit-DB (19522), Tenable (10443) and Vulnerability Center (SBV-523†). The entries VDB-13695, VDB-16127, VDB-16232 and VDB-16233 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10443
Nessus Name: TCP/IP Predictable ISN (Initial Sequence Number) Generation Weakness
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/18/2001 🔍
10/18/2001 +0 days 🔍
10/18/2001 +0 days 🔍
12/24/2002 +432 days 🔍
03/03/2003 +69 days 🔍
07/09/2014 +4146 days 🔍
11/24/2024 +3791 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Status: Confirmed

CVE: CVE-2001-0751 (🔍)
GCVE (CVE): GCVE-0-2001-0751
GCVE (VulDB): GCVE-100-17514
X-Force: 139
Vulnerability Center: 523 - [cisco-sa-20010522-cbos] Cisco CBOS < 2.3.8 predictable TCP sequence numbers, High

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

Entryinfo

Created: 07/09/2014 17:22
Updated: 11/24/2024 05:55
Changes: 07/09/2014 17:22 (60), 05/07/2019 09:54 (1), 11/24/2024 05:55 (27)
Complete: 🔍
Cache ID: 216:CFD:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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