Cisco IOS/IOS XE OSPF Link State LSA Type 11 Packet input validation

CVSS Meta Temp Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco IOS and IOS XE. This issue affects some unknown processing of the component OSPF Link State Handler. Such manipulation as part of LSA Type 11 Packet leads to input validation. This vulnerability is uniquely identified as CVE-2013-5527. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco IOS and IOS XE (Router Operating System) (unknown version) and classified as critical. Affected by this issue is an unknown code block of the component OSPF Link State Handler. The manipulation as part of a LSA Type 11 Packet 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. CVE summarizes:

The OSPF functionality in Cisco IOS and IOS XE allows remote attackers to cause a denial of service (device reload) via crafted options in an LSA type 11 packet, aka Bug ID CSCui21030.

The weakness was disclosed 10/09/2013 with Cisco as Cisco IOS Software OSPF Opaque LSA Denial of Service Vulnerability as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. The public release has been coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2013-5527 since 08/22/2013. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 78825 (Cisco IOS XE OSPF Opaque LSA DoS (CSCui21030)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (87762), Tenable (78825), SecurityFocus (BID 62904†), OSVDB (98253†) and Vulnerability Center (SBV-41845†). tools.cisco.com is providing further details. Once again VulDB remains the best source 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: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 78825
Nessus Name: Cisco IOS XE OSPF Opaque LSA DoS (CSCui21030)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/22/2013 🔍
10/09/2013 +48 days 🔍
10/09/2013 +0 days 🔍
10/09/2013 +0 days 🔍
10/10/2013 +1 days 🔍
10/10/2013 +0 days 🔍
10/11/2013 +1 days 🔍
11/03/2014 +388 days 🔍
05/26/2021 +2396 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: Cisco IOS Software OSPF Opaque LSA Denial of Service Vulnerability
Organization: Cisco
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-5527 (🔍)
GCVE (CVE): GCVE-0-2013-5527
GCVE (VulDB): GCVE-100-10652
X-Force: 87762 - Cisco IOS OSPF denial of service
SecurityFocus: 62904
OSVDB: 98253
Vulnerability Center: 41845 - Cisco IOS and IOS XE Remote DoS in OSPF via Crafted LSA Type 11 Packets - CVE-2013-5527, Medium

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

Entryinfo

Created: 10/11/2013 10:17
Updated: 05/26/2021 14:56
Changes: 10/11/2013 10:17 (46), 05/13/2017 09:40 (27), 05/26/2021 14:56 (3)
Complete: 🔍
Committer:
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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