Cisco IOS XE 3.9.1S PPTG ALG Feature 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 has been found in Cisco IOS XE 3.9.1S and classified as problematic. This affects an unknown function of the component PPTG ALG Feature. The manipulation leads to input validation. This vulnerability is listed as CVE-2013-5545. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco IOS XE 3.9.1S (Router Operating System). This issue affects an unknown part of the component PPTG ALG 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:

The PPTP ALG implementation in 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 many PPTP packets over NAT, aka Bug ID CSCuh19936.

The weakness was presented 10/30/2013 as Multiple Vulnerabilities in Cisco IOS XE Software for 1000 Series Aggregation Services Routers as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The public release was coordinated in cooperation with Cisco. The identification of this vulnerability is CVE-2013-5545 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. The technical details are unknown and an exploit is not 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 63444†), OSVDB (99153†), SecurityTracker (ID 1029277†) and Vulnerability Center (SBV-42149†). tools.cisco.com is providing further details. See VDB-11062, VDB-11064 and VDB-11065 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: 🔍
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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-2013-5545 (🔍)
GCVE (CVE): GCVE-0-2013-5545
GCVE (VulDB): GCVE-100-11063

IAVM: 🔍

SecurityFocus: 63444
OSVDB: 99153
SecurityTracker: 1029277 - Cisco IOS XE Multiple Bugs Let Remote Users Deny Service
Vulnerability Center: 42149 - [cisco-sa-20131030-asr1000] Cisco IOS XE Remote DoS Vulnerability via PPTP Packets (CVE-2013-5545), High

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

Entryinfo

Created: 11/01/2013 11:00
Updated: 06/01/2021 15:48
Changes: 11/01/2013 11:00 (49), 05/14/2017 10:07 (27), 06/01/2021 15:48 (3)
Complete: 🔍
Committer:
Cache ID: 216:DFC:103

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