CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.6 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, has been found in Cisco IOS up to 12.4t (Router Operating System). Affected by this issue is an unknown functionality of the component Authentication Proxy. 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 Firewall Authentication Proxy for FTP and/or Telnet Sessions for Cisco IOS 12.2ZH and 12.2ZL, 12.3 and 12.3T, and 12.4 and 12.4T allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted user authentication credentials.
The bug was discovered 09/07/2005. The weakness was published 08/07/2005 with Cisco (Website). The advisory is available at cisco.com. This vulnerability is handled as CVE-2005-2841 since 09/08/2005. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.
It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 48988 (Cisco IOS Firewall Authentication Proxy for FTP and Telnet Sessions Buffer Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l.
Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cisco.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 months after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 33721.
The vulnerability is also documented in the databases at X-Force (22174) and Tenable (48988).
Product
Type
Vendor
Name
Version
License
Support
- end of life (old version)
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 6.6
VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Proof-of-Concept
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 48988
Nessus Name: Cisco IOS Firewall Authentication Proxy for FTP and Telnet Sessions Buffer Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: cisco.com
TippingPoint: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍
Timeline
08/07/2005 🔍09/07/2005 🔍
09/07/2005 🔍
09/07/2005 🔍
09/07/2005 🔍
09/07/2005 🔍
09/08/2005 🔍
09/08/2005 🔍
09/08/2005 🔍
09/08/2005 🔍
09/08/2005 🔍
10/27/2005 🔍
09/01/2010 🔍
07/04/2019 🔍
Sources
Vendor: cisco.comAdvisory: cisco.com
Researcher: http://www.cisco.com
Organization: Cisco
Status: Confirmed
CVE: CVE-2005-2841 (🔍)
OVAL: 🔍
X-Force: 22174 - Cisco IOS Firewall Authentication Proxy configuration buffer overflow, Medium Risk
SecurityTracker: 1014865
Vulnerability Center: 9476 - [cisco-sa-20050907-auth_proxy] Buffer Overflow in Cisco IOS Firewall Authentication Proxy for FTP, High
SecurityFocus: 14770 - Cisco IOS Firewall Authentication Proxy Buffer Overflow Vulnerability
Secunia: 16719 - Cisco IOS Authentication Proxy for FTP/Telnet Buffer Overflow, Moderately Critical
OSVDB: 19227 - Cisco IOS Authentication Proxy for FTP/Telnet Remote Overflow
Vupen: ADV-2005-1669
Entry
Created: 09/08/2005 18:05Updated: 07/04/2019 11:24
Changes: 09/08/2005 18:05 (99), 07/04/2019 11:24 (3)
Complete: 🔍
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