CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.7 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, has been found in Cisco IOS and IOS XE 4.3.4 (Router Operating System). This issue affects an unknown code of the component MPLS Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. Impacted is availability. The summary by CVE is:
Cisco IOS XR 4.3.4 and earlier on ASR 9000 devices, when bridge-group virtual interface (BVI) routing is enabled, allows remote attackers to cause a denial of service (chip and card hangs) via a series of crafted MPLS packets, aka Bug ID CSCuo91149.
The weakness was shared 07/15/2014 with Cisco as CSCuo91149 as confirmed security notice (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2014-3321 since 05/07/2014. The attack needs to be initiated within the local network. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 77222 , which helps to determine the existence of the flaw in a target environment. It is .
Upgrading to version 5.1.3, 5.2.0 or 5.2.2 eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (94487) and Tenable (77222). tools.cisco.com is providing further details.
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: 6.5VulDB Meta Temp Score: 5.7
VulDB Base Score: 6.5
VulDB Temp Score: 5.7
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: Input validationCWE: CWE-20
ATT&CK: Unknown
Local: No
Remote: Partially
Availability: 🔍
Status: Unproven
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 77222
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Port: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: IOS/IOS XE 5.1.3/5.2.0/5.2.2
Timeline
05/07/2014 🔍07/15/2014 🔍
07/15/2014 🔍
07/15/2014 🔍
07/16/2014 🔍
07/16/2014 🔍
07/16/2014 🔍
07/17/2014 🔍
08/18/2014 🔍
02/09/2022 🔍
Sources
Vendor: cisco.comAdvisory: CSCuo91149
Organization: Cisco
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2014-3321 (🔍)
X-Force: 94487 - Cisco IOS XR MPLS denial of service, Medium Risk
SecurityTracker: 1030597 - Cisco ASR 9000 Series IOS XR Router MPLS Processing Flaw Lets Remote Users Deny Service
Vulnerability Center: 45404 - Cisco IOS-XR on Cisco ASR Routers Remote DoS via Specially Crafted MPLS Packets - CVE-2014-3321, Medium
SecurityFocus: 68536 - Cisco IOS XR Software MPLS Packet Handling Denial of Service Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20150108
Misc.: 🔍
Entry
Created: 07/17/2014 00:33Updated: 02/09/2022 14:43
Changes: 07/17/2014 00:33 (72), 06/02/2017 07:38 (6), 02/09/2022 14:43 (3)
Complete: 🔍
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