Cisco IOS XE 15.2.4 on ASR1000 PPPoE input validation

CVSS Meta Temp Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IOS XE 15.2.4 on ASR1000. It has been declared as problematic. This affects an unknown function of the component PPPoE Handler. The manipulation results in input validation. This vulnerability is reported as CVE-2014-3284. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco IOS XE 15.2.4 on ASR1000 (Router Operating System). It has been classified as problematic. Affected is some unknown processing of the component PPPoE 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:

Cisco IOS XE on ASR1000 devices, when PPPoE termination is enabled, allows remote attackers to cause a denial of service (device reload) via a malformed PPPoE packet, aka Bug ID CSCuo55180.

The weakness was disclosed 05/20/2014 with Cisco as CSCuo55180 as confirmed security notice (Website). The advisory is available at tools.cisco.com. This vulnerability is traded as CVE-2014-3284 since 05/07/2014. The exploitability is told to be easy. Access to the local network is required for this attack to succeed. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 76790 (Cisco IOS XE PPPoE Packet DoS (CSCuo55180)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading to version 15.5.0.5 eliminates this vulnerability. The upgrade is hosted for download at software.cisco.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (93343), Tenable (76790), SecurityFocus (BID 67603†), Secunia (SA58405†) and SecurityTracker (ID 1030283†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 76790
Nessus Name: Cisco IOS XE PPPoE Packet DoS (CSCuo55180)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: IOS XE 15.5.0.5

Timelineinfo

05/07/2014 🔍
05/20/2014 +13 days 🔍
05/20/2014 +0 days 🔍
05/23/2014 +3 days 🔍
05/25/2014 +2 days 🔍
05/25/2014 +0 days 🔍
05/26/2014 +1 days 🔍
05/27/2014 +1 days 🔍
05/27/2014 +0 days 🔍
05/28/2014 +1 days 🔍
07/25/2014 +58 days 🔍
06/20/2021 +2522 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCuo55180
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3284 (🔍)
GCVE (CVE): GCVE-0-2014-3284
GCVE (VulDB): GCVE-100-13362
X-Force: 93343 - Cisco IOS XE PPPoE denial of service, Medium Risk
SecurityFocus: 67603 - Cisco IOS XE Software PPPoE Packet Handling Denial of Service Vulnerability
Secunia: 58405 - Cisco IOS XE PPPoE Packet Handling Denial of Service Vulnerability, Less Critical
SecurityTracker: 1030283 - Cisco IOS XE ASR1000 PPPoE Processing Flaw Lets Remote Authenticated Users Deny Service
Vulnerability Center: 44643 - Cisco IOS XE 15.2(4)S2 Remote DoS via PPPoE Packets, Medium

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

Entryinfo

Created: 05/27/2014 09:06
Updated: 06/20/2021 12:12
Changes: 05/27/2014 09:06 (49), 05/29/2017 08:49 (36), 06/20/2021 12:12 (3)
Complete: 🔍
Cache ID: 216:C84:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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