| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.3 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as problematic, has been found in Cisco IOS 12.4jda. Affected by this vulnerability is an unknown functionality. This manipulation causes denial of service. This vulnerability is tracked as CVE-2009-0629. No exploit exists. It is suggested to install a patch to address this issue.
Details
A vulnerability classified as problematic was found in Cisco IOS 12.4jda (Router Operating System). Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:
The (1) Airline Product Set (aka ALPS), (2) Serial Tunnel Code (aka STUN), (3) Block Serial Tunnel Code (aka BSTUN), (4) Native Client Interface Architecture (NCIA) support, (5) Data-link switching (aka DLSw), (6) Remote Source-Route Bridging (RSRB), (7) Point to Point Tunneling Protocol (PPTP), (8) X.25 for Record Boundary Preservation (RBP), (9) X.25 over TCP (XOT), and (10) X.25 Routing features in Cisco IOS 12.2 and 12.4 allows remote attackers to cause a denial of service (device reload) via a series of crafted TCP packets.
The bug was discovered 03/25/2009. The weakness was disclosed 03/27/2009 (Website). The advisory is shared at cisco.com. This vulnerability is known as CVE-2009-0629 since 02/18/2009. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.
It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 49034 (Cisco IOS Software Multiple Features Crafted TCP Sequence Vulnerability - Cisco Systems), 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 c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43156 (Cisco IOS Software Multiple Features Crafted TCP Sequence Vulnerability (cisco-sa-20090325-tcp)).
Applying a patch is able to eliminate this problem. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at X-Force (49420), Tenable (49034), SecurityFocus (BID 34238†), OSVDB (53136†) and Secunia (SA34438†). The entries VDB-47383, VDB-47382, VDB-47381 and VDB-47380 are pretty similar. 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: 5.9VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.9
VulDB Temp Score: 5.3
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 |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
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: 49034
Nessus Name: Cisco IOS Software Multiple Features Crafted TCP Sequence Vulnerability - Cisco Systems
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍
OpenVAS ID: 64169
OpenVAS Name: Ubuntu USN-743-1 (gs-gpl)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Timeline
02/18/2009 🔍03/25/2009 🔍
03/25/2009 🔍
03/25/2009 🔍
03/25/2009 🔍
03/25/2009 🔍
03/26/2009 🔍
03/26/2009 🔍
03/27/2009 🔍
03/27/2009 🔍
09/01/2010 🔍
03/17/2015 🔍
05/09/2025 🔍
Sources
Vendor: cisco.comAdvisory: cisco.com
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2009-0629 (🔍)
GCVE (CVE): GCVE-0-2009-0629
GCVE (VulDB): GCVE-100-47377
OVAL: 🔍
X-Force: 49420
SecurityFocus: 34238 - Cisco IOS Multiple Features TCP Packet Denial of Service Vulnerability
Secunia: 34438 - Cisco IOS Multiple Vulnerabilities, Moderately Critical
OSVDB: 53136 - Cisco IOS - Multiple Features TCP Packet Denial of Service Issue
SecurityTracker: 1021903
Vulnerability Center: 21379 - [cisco-sa-20090325-tcp] Cisco IOS Multiple Features Remote DoS Vulnerability via TCP Packets, High
Vupen: ADV-2009-0851
See also: 🔍
Entry
Created: 03/17/2015 23:38Updated: 05/09/2025 17:17
Changes: 03/17/2015 23:38 (80), 08/31/2019 10:35 (6), 05/09/2025 17:17 (18)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

No comments yet. Languages: en.
Please log in to comment.