Cisco Secure Access Control Server up to 2.4.2 TACACS+ Packet memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Cisco Secure Access Control Server up to 2.4.2 and classified as critical. This issue affects some unknown processing of the component TACACS+ Packet Handler. This manipulation causes memory corruption. This vulnerability is registered as CVE-2000-1055. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as very critical was found in Cisco Secure Access Control Server up to 2.4.2 (Network Management Software). Affected by this vulnerability is an unknown part of the component TACACS+ Packet Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in CiscoSecure ACS Server 2.4(2) and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a large TACACS+ packet.

The bug was discovered 09/21/2000. The weakness was published 09/21/2000 by window with Cisco (Website). It is possible to read the advisory at cisco.com. This vulnerability is known as CVE-2000-1055. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/06/2019).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5273), SecurityFocus (BID 1706†) and OSVDB (1569†). Similar entries are available at VDB-16074 and VDB-16076. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/21/2000 🔍
09/21/2000 +0 days 🔍
09/21/2000 +0 days 🔍
12/11/2000 +81 days 🔍
02/21/2003 +802 days 🔍
07/01/2014 +4147 days 🔍
04/06/2019 +1740 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Researcher: window
Organization: Cisco
Status: Not defined

CVE: CVE-2000-1055 (🔍)
GCVE (CVE): GCVE-0-2000-1055
GCVE (VulDB): GCVE-100-16075
X-Force: 5273 - CiscoSecure ACS oversized TACACS+ packet denial of service
SecurityFocus: 1706 - CiscoSecure ACS for Windows NT Oversized TACACS+ Packet DoS Vulnerability
OSVDB: 1569 - CiscoSecure ACS Oversized TACACS+ Packet DoS

See also: 🔍

Entryinfo

Created: 07/01/2014 16:16
Updated: 04/06/2019 11:12
Changes: 07/01/2014 16:16 (60), 04/06/2019 11:12 (1)
Complete: 🔍
Cache ID: 216:051:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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