Cisco Firewall Services Module up to 2.3(2) Blacklist Filter Remote Code Execution

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.6 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in Cisco Firewall Services Module up to 2.3(2) and classified as problematic. Affected is an unknown function of the component Blacklist Filter. Performing a manipulation results in Remote Code Execution. This vulnerability was named CVE-2005-1517. The attack may be initiated remotely. In addition, an exploit is available. The affected component should be upgraded.
Details
A vulnerability was found in Cisco Firewall Services Module up to 2.3(2) (Firewall Software). It has been classified as critical. This affects an unknown part of the component Blacklist Filter. The manipulation with an unknown input leads to a remote code execution vulnerability. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
Unknown vulnerability in Cisco Firewall Services Module (FWSM) 2.3.1 and earlier, when using URL, FTP, or HTTPS filtering exceptions, allows certain TCP packets to bypass access control lists (ACLs).
The bug was discovered 05/11/2005. The weakness was presented 05/11/2005 with Cisco (Website). The advisory is shared at cisco.com. This vulnerability is uniquely identified as CVE-2005-1517 since 05/11/2005. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.
It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.
Upgrading to version 2.3(2) 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 immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at X-Force (20515), SecurityFocus (BID 13595†), OSVDB (16423†), Secunia (SA15349†) and SecurityTracker (ID 1013949†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
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 |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Remote Code ExecutionCWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Firewall Services Module 2.3(2)
Patch: cisco.com
Timeline
05/11/2005 🔍05/11/2005 🔍
05/11/2005 🔍
05/11/2005 🔍
05/11/2005 🔍
05/11/2005 🔍
05/11/2005 🔍
05/12/2005 🔍
05/12/2005 🔍
05/30/2005 🔍
12/04/2005 🔍
07/03/2019 🔍
Sources
Vendor: cisco.comAdvisory: cisco.com
Researcher: http://www.cisco.com
Organization: Cisco
Status: Confirmed
CVE: CVE-2005-1517 (🔍)
GCVE (CVE): GCVE-0-2005-1517
GCVE (VulDB): GCVE-100-1473
X-Force: 20515 - Cisco 6500 and 7600 series FWSM allows ACL bypass, High Risk
SecurityFocus: 13595 - Cisco Catalyst 6500/7600 Series Firewall Services Module ACL Bypass Vulnerability
Secunia: 15349 - Cisco Firewall Services Module TCP Packet URL Filtering Bypass, Less Critical
OSVDB: 16423 - Cisco Firewall Services Module (FWSM) TCP Packet access-list Bypass
SecurityTracker: 1013949
Vulnerability Center: 9811 - [cisco-sa-20050511-url] Cisco FWSM up to 2.3.1 ACL Bypass, High
Vupen: ADV-2005-0527
Entry
Created: 05/30/2005 12:54Updated: 07/03/2019 06:23
Changes: 05/30/2005 12:54 (86), 07/03/2019 06:23 (1)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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