Cisco IOS XE on ASR 1000 Aggregation Services Fragmented Packet resource management

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

Summaryinfo

A vulnerability has been found in Cisco IOS XE on ASR 1000 and classified as problematic. This vulnerability affects unknown code of the component Aggregation Services. This manipulation as part of Fragmented Packet causes resource management. The identification of this vulnerability is CVE-2015-4291. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Cisco IOS XE on ASR 1000 (Router Operating System) (the affected version unknown). It has been declared as critical. Affected by this vulnerability is an unknown part of the component Aggregation Services. The manipulation as part of a Fragmented Packet leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

Cisco IOS XE 2.x before 2.4.3 and 2.5.x before 2.5.1 on ASR 1000 devices allows remote attackers to cause a denial of service (Embedded Services Processor crash) via a crafted series of fragmented (1) IPv4 or (2) IPv6 packets, aka Bug ID CSCtd72617.

The weakness was shared 07/30/2015 with Cisco as cisco-sa-20150730-asr1k as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is known as CVE-2015-4291 since 06/04/2015. 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 85255 (Cisco IOS XE Software for 1000 Series Aggregation Services Routers Fragmented Packet DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at X-Force (105222), Tenable (85255), SecurityFocus (BID 76118†), SecurityTracker (ID 1033131†) and Vulnerability Center (SBV-51700†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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License

Website

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

AVACAuCIA
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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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 85255
Nessus Name: Cisco IOS XE Software for 1000 Series Aggregation Services Routers Fragmented Packet DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/04/2015 🔍
07/30/2015 +56 days 🔍
07/30/2015 +0 days 🔍
07/30/2015 +0 days 🔍
07/30/2015 +0 days 🔍
07/31/2015 +1 days 🔍
07/31/2015 +0 days 🔍
08/02/2015 +2 days 🔍
06/07/2022 +2501 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20150730-asr1k
Organization: Cisco
Status: Confirmed

CVE: CVE-2015-4291 (🔍)
GCVE (CVE): GCVE-0-2015-4291
GCVE (VulDB): GCVE-100-76849
X-Force: 105222 - Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers denial of service
SecurityFocus: 76118 - Cisco IOS XE Software for ASR 1000 Series Routers CVE-2015-4291 Denial of Service Vulnerability
SecurityTracker: 1033131 - Cisco ASR 1000 Series Routers Fragmented Packet Processing Flaw Lets Remote Users Cause the Target System to Crash
Vulnerability Center: 51700 - [cisco-sa-20150730-asr1k] Cisco IOS XE on ASR 1000 Remote DoS via Fragmented IPv4/IPv6 Packets, High

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

Entryinfo

Created: 07/31/2015 10:31
Updated: 06/07/2022 08:38
Changes: 07/31/2015 10:31 (66), 08/03/2017 08:45 (9), 06/07/2022 08:38 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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