Cisco IOS/IOS XE ANI Packet input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco IOS and IOS XE. This issue affects some unknown processing of the component ANI Packet Handler. The manipulation leads to input validation. This vulnerability is listed as CVE-2017-3849. The attack must be carried out from within the local network. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco IOS and IOS XE (Router Operating System) (the affected version is unknown). It has been rated as critical. This issue affects an unknown code of the component ANI Packet Handler. 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 bug was discovered 03/20/2017. The weakness was presented 03/20/2017 by Omar Eissa as cisco-sa-20170320-ani as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The public release was coordinated in cooperation with Cisco. The identification of this vulnerability is CVE-2017-3849 since 12/21/2016. The attack needs to be initiated within the local network. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 97943 (Cisco IOS ANI Registrar DoS (cisco-sa-20170320-ani)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316098 (Cisco IOS and IOS XE Software Autonomic Networking Infrastructure Registrar Denial of Service Vulnerability (cisco-sa-20170320-ani)).

Upgrading 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 (97943), SecurityFocus (BID 96972†) and SecurityTracker (ID 1038064†). See VDB-98334 for similar entry. 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: 7.4
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.4
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Cisco): 7.4
Vendor Vector (Cisco): 🔍

NVD Base Score: 7.4
NVD Vector: 🔍

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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97943
Nessus Name: Cisco IOS ANI Registrar DoS (cisco-sa-20170320-ani)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103403
OpenVAS Name: Cisco IOS XE Software Autonomic Networking Infrastructure Registrar Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

12/21/2016 🔍
03/20/2017 +89 days 🔍
03/20/2017 +0 days 🔍
03/20/2017 +0 days 🔍
03/20/2017 +0 days 🔍
03/20/2017 +0 days 🔍
03/21/2017 +1 days 🔍
03/21/2017 +0 days 🔍
03/24/2017 +3 days 🔍
08/28/2024 +2714 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170320-ani
Researcher: Omar Eissa
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2017-3849 (🔍)
GCVE (CVE): GCVE-0-2017-3849
GCVE (VulDB): GCVE-100-98333

OVAL: 🔍

SecurityFocus: 96972 - Cisco IOS and IOS XE Software CVE-2017-3849 Denial of Service Vulnerability
OSVDB: - CVE-2017-3849 - Cisco - Multiple Products - Denial of Service Issue
SecurityTracker: 1038064

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

Entryinfo

Created: 03/21/2017 10:51
Updated: 08/28/2024 08:42
Changes: 03/21/2017 10:51 (87), 09/10/2020 16:40 (7), 11/14/2022 09:58 (4), 08/28/2024 08:42 (16)
Complete: 🔍
Cache ID: 216:128:103

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