Cisco IOS XE 3.7.2S/3.8.0S TCP Packet input validation

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

Summaryinfo

A vulnerability was found in Cisco IOS XE 3.7.2S/3.8.0S and classified as critical. This impacts an unknown function of the component TCP Packet Handler. The manipulation results in input validation. This vulnerability is cataloged as CVE-2013-5546. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Cisco IOS XE 3.7.2S/3.8.0S (Router Operating System). Affected is an unknown code of the component TCP Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

The TCP reassembly feature in Cisco IOS XE 3.7 before 3.7.3S and 3.8 before 3.8.1S on 1000 ASR devices allows remote attackers to cause a denial of service (device reload) via large TCP packets that are processed by the (1) NAT or (2) ALG component, aka Bug ID CSCud72509.

The weakness was shared 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 for download at tools.cisco.com. The vendor cooperated in the coordination of the public release. This vulnerability is traded as CVE-2013-5546 since 08/22/2013. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit 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 3.7.3S or 3.8.1S 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 63436†), OSVDB (99154†), SecurityTracker (ID 1029277†) and Vulnerability Center (SBV-42150†). Further details are available at tools.cisco.com. The entries VDB-11062, VDB-11063 and VDB-11065 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: IOS XE 3.7.3S/3.8.1S

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-2013-5546 (🔍)
GCVE (CVE): GCVE-0-2013-5546
GCVE (VulDB): GCVE-100-11064

IAVM: 🔍

SecurityFocus: 63436
OSVDB: 99154
SecurityTracker: 1029277 - Cisco IOS XE Multiple Bugs Let Remote Users Deny Service
Vulnerability Center: 42150 - [cisco-sa-20131030-asr1000] Cisco IOS XE Remote DoS Vulnerability due to TCP Segment Reassembly (CVE-2013-5546), High

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

Entryinfo

Created: 11/01/2013 11:02
Updated: 06/01/2021 15:54
Changes: 11/01/2013 11:02 (49), 05/14/2017 10:07 (27), 06/01/2021 15:54 (3)
Complete: 🔍
Committer:
Cache ID: 216::103

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