Cisco IOS XE 3.9.1S EoGRE Packet input validation

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 XE 3.9.1S. It has been classified as problematic. Affected is an unknown function of the component EoGRE Packet Handler. This manipulation causes input validation. This vulnerability is registered as CVE-2013-5547. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Cisco IOS XE 3.9.1S (Router Operating System) and classified as critical. Affected by this vulnerability is an unknown code block of the component EoGRE Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

Cisco IOS XE 3.9 before 3.9.2S on 1000 ASR devices allows remote attackers to cause a denial of service (device reload) by sending malformed EoGRE packets over (1) IPv4 or (2) IPv6, aka Bug ID CSCuf08269.

The weakness was published 10/30/2013 as Multiple Vulnerabilities in Cisco IOS XE Software for 1000 Series Aggregation Services Routers as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The public release has been coordinated with Cisco. This vulnerability is known as CVE-2013-5547 since 08/22/2013. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 70784 (Multiple Vulnerabilities in Cisco IOS XE Software for 1000 Series Aggregation Services Routers (cisco-sa-20131030-asr1000)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading to version 3.9.2S 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 (70784), SecurityFocus (BID 63439†), OSVDB (99155†), SecurityTracker (ID 1029277†) and Vulnerability Center (SBV-42151†). Additional details are provided at tools.cisco.com. Similar entries are available at VDB-11062, VDB-11063 and VDB-11064. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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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: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 70784
Nessus Name: Multiple Vulnerabilities in Cisco IOS XE Software for 1000 Series Aggregation Services Routers (cisco-sa-20131030-asr1000)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: IOS XE 3.9.2S

Timelineinfo

08/22/2013 🔍
10/30/2013 +69 days 🔍
10/30/2013 +0 days 🔍
10/30/2013 +0 days 🔍
10/30/2013 +0 days 🔍
10/31/2013 +1 days 🔍
10/31/2013 +0 days 🔍
11/01/2013 +1 days 🔍
06/01/2021 +2769 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: Multiple Vulnerabilities in Cisco IOS XE Software for 1000 Series Aggregation Services Routers
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-5547 (🔍)
GCVE (CVE): GCVE-0-2013-5547
GCVE (VulDB): GCVE-100-11065

IAVM: 🔍

SecurityFocus: 63439
OSVDB: 99155
SecurityTracker: 1029277 - Cisco IOS XE Multiple Bugs Let Remote Users Deny Service
Vulnerability Center: 42151 - [cisco-sa-20131030-asr1000] Cisco IOS XE Remote DoS Vulnerability via EoGRE (CVE-2013-5547), High

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

Entryinfo

Created: 11/01/2013 11:05
Updated: 06/01/2021 15:59
Changes: 11/01/2013 11:05 (49), 05/14/2017 10:08 (27), 06/01/2021 15:59 (3)
Complete: 🔍
Committer:
Cache ID: 216:B5A:103

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