Cisco IOS/IOS XE prior 12.0/12.2/12.3/12.4/15.0 RSVP Feature input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco IOS and IOS XE. This issue affects some unknown processing of the component RSVP Feature. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2013-5478. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco IOS and IOS XE (Router Operating System). This issue affects an unknown functionality of the component RSVP Feature. 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 15.0 through 15.3 and IOS XE 3.2 through 3.8, when a VRF interface exists, allows remote attackers to cause a denial of service (interface queue wedge) via crafted UDP RSVP packets, aka Bug ID CSCuf17023.

The weakness was disclosed 09/25/2013 with Cisco as cisco-sa-20130925-rsvp as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The public release has been coordinated in cooperation with Cisco. The identification of this vulnerability is CVE-2013-5478 since 08/22/2013. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at tools.cisco.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 70313 (Cisco IOS Software Resource Reservation Protocol Interface Queue Wedge Vulnerability (cisco-sa-20130925-rsvp)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43326 (Cisco IOS Software Resource Reservation Protocol Interface Queue Wedge Vulnerability (cisco-sa-20130925-rsvp)).

Upgrading to version 12.0, 12.2, 12.3, 12.4 or 15.0 eliminates this vulnerability. The upgrade is hosted for download at tools.cisco.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (70313), SecurityFocus (BID 62646†), OSVDB (97735†) and Vulnerability Center (SBV-41620†). tools.cisco.com is providing further details. The entries VDB-10488 and VDB-10486 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Cisco IOS up to 15.3
  • Cisco IOS XE up to 3.7S.1

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 70313
Nessus Name: Cisco IOS Software Resource Reservation Protocol Interface Queue Wedge Vulnerability (cisco-sa-20130925-rsvp)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: IOS/IOS XE 12.0/12.2/12.3/12.4/15.0

Timelineinfo

08/22/2013 🔍
09/25/2013 +34 days 🔍
09/25/2013 +0 days 🔍
09/25/2013 +0 days 🔍
09/26/2013 +1 days 🔍
09/27/2013 +1 days 🔍
09/27/2013 +0 days 🔍
09/29/2013 +2 days 🔍
10/07/2013 +8 days 🔍
12/24/2024 +4096 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20130925-rsvp
Organization: Cisco
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-5478 (🔍)
GCVE (CVE): GCVE-0-2013-5478
GCVE (VulDB): GCVE-100-10487

IAVM: 🔍

SecurityFocus: 62646 - Cisco IOS And IOS XE RSVP Interface Queue Wedge CVE-2013-5478 Remote Denial of Service Vulnerability
OSVDB: 97735
Vulnerability Center: 41620 - [cisco-sa-20130925-rsvp] Cisco IOS 15.0-15.3 and IOS XE 3.2-3.8 with VRF Interface Remote DoS via UDP RSVP - CVE-2013-5478, High

scip Labs: https://www.scip.ch/en/?labs.20150108
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/26/2013 15:52
Updated: 12/24/2024 16:49
Changes: 09/26/2013 15:52 (78), 05/11/2017 13:33 (3), 05/25/2021 22:37 (3), 12/24/2024 16:49 (16)
Complete: 🔍
Committer:
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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