VDB-92285 · CVE-2016-6386 · BID 93202

Cisco IOS/IOS XE IP Fragment Reassembly resource management

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 critical has been reported in Cisco IOS and IOS XE. The affected element is an unknown function of the component IP Fragment Reassembly. The manipulation leads to resource management. This vulnerability is referenced as CVE-2016-6386. Remote exploitation of the attack is possible. No exploit is available. 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 IP Fragment Reassembly. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

Cisco IOS XE 3.1 through 3.17 and 16.1 on 64-bit platforms allows remote attackers to cause a denial of service (data-structure corruption and device reload) via fragmented IPv4 packets, aka Bug ID CSCux66005.

The weakness was published 09/28/2016 with Cisco as cisco-sa-20160928-frag as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2016-6386 since 07/26/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 316036 (Cisco IOS XE Software IP Fragment Reassembly Denial of Service Vulnerability (cisco-sa-20160928-frag)).

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 SecurityFocus (BID 93202†) and SecurityTracker (ID 1036914†). tools.cisco.com is providing further details. Similar entries are available at VDB-92251, VDB-92252, VDB-92253 and VDB-92254. 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: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 802594
OpenVAS Name: Cisco IOS XE Software IP Fragment Reassembly 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

07/26/2016 🔍
09/28/2016 +64 days 🔍
09/28/2016 +0 days 🔍
09/28/2016 +0 days 🔍
09/28/2016 +0 days 🔍
10/03/2016 +5 days 🔍
10/05/2016 +2 days 🔍
09/24/2024 +2911 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20160928-frag
Organization: Cisco
Status: Confirmed

CVE: CVE-2016-6386 (🔍)
GCVE (CVE): GCVE-0-2016-6386
GCVE (VulDB): GCVE-100-92285

OVAL: 🔍

SecurityFocus: 93202 - Cisco IOS XE Software CVE-2016-6386 Denial of Service Vulnerability
SecurityTracker: 1036914

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

Entryinfo

Created: 10/03/2016 10:04
Updated: 09/24/2024 21:31
Changes: 10/03/2016 10:04 (66), 04/29/2019 11:14 (11), 09/24/2024 21:31 (18)
Complete: 🔍
Cache ID: 216::103

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