Cisco IOS XR 4.3.1 UDP Packet resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IOS XR 4.3.1. It has been classified as problematic. This issue affects some unknown processing of the component UDP Packet Handler. Performing a manipulation results in resource management. This vulnerability is known as CVE-2013-5503. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Cisco IOS XR 4.3.1 (Router Operating System). This affects an unknown code block of the component UDP Packet Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

The UDP process in Cisco IOS XR 4.3.1 does not free packet memory upon detecting full packet queues, which allows remote attackers to cause a denial of service (memory consumption) via UDP packets to listening ports, aka Bug ID CSCue69413.

The weakness was published 10/02/2013 as cisco-sa-20131002-iosxr as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The public release has been coordinated with Cisco. This vulnerability is uniquely identified as CVE-2013-5503 since 08/22/2013. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 71437 (Cisco IOS XR Software Memory Exhaustion Vulnerability (cisco-sa-20131002-iosxr)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading to version 4.3.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (71437), SecurityFocus (BID 62770†), OSVDB (98022†) and Vulnerability Center (SBV-41771†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 71437
Nessus Name: Cisco IOS XR Software Memory Exhaustion Vulnerability (cisco-sa-20131002-iosxr)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: IOS XR 4.3.2

Timelineinfo

08/22/2013 🔍
10/02/2013 +41 days 🔍
10/02/2013 +0 days 🔍
10/02/2013 +0 days 🔍
10/02/2013 +0 days 🔍
10/03/2013 +1 days 🔍
10/06/2013 +3 days 🔍
12/14/2013 +69 days 🔍
05/26/2021 +2720 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20131002-iosxr
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-5503 (🔍)
GCVE (CVE): GCVE-0-2013-5503
GCVE (VulDB): GCVE-100-10575
SecurityFocus: 62770
OSVDB: 98022
Vulnerability Center: 41771 - [cisco-sa-20131002-iosxr] Cisco IOS XR 4.3.1 Remote DoS via UDP Packets, High

scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 10/03/2013 17:09
Updated: 05/26/2021 09:06
Changes: 10/03/2013 17:09 (46), 05/12/2017 14:20 (23), 05/26/2021 09:06 (3)
Complete: 🔍
Committer:
Cache ID: 216:178:103

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