Cisco ASA 1000V/5000 DNS Response resource management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco ASA 1000V/5000. This issue affects some unknown processing of the component DNS Response Handler. The manipulation results in resource management. This vulnerability is known as CVE-2015-6326. No exploit is available.

Detailsinfo

A vulnerability was found in Cisco ASA 1000V/5000 (Firewall Software). It has been classified as critical. Affected is an unknown code block of the component DNS Response Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability.

The weakness was published 10/21/2015 as cisco-sa-20151021-asa-dns2 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is traded as CVE-2015-6326 since 08/17/2015. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 93530 (Cisco ASA DNS Packet Handling DoS (cisco-sa-20151021-asa-dns2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43044 (Cisco ASA Software DNS Denial of Service Vulnerability (cisco-sa-20151021-asa-dns2)).

The vulnerability is also documented in the databases at X-Force (107414), Tenable (93530), SecurityFocus (BID 77261†) and Vulnerability Center (SBV-53828†). Similar entries are available at VDB-78719, VDB-78718 and VDB-78717. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Firewall Software

Vendor

Cisco

Name

Version

License

commercial

Website

Vendor: https://www.cisco.com/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 93530
Nessus Name: Cisco ASA DNS Packet Handling DoS (cisco-sa-20151021-asa-dns2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 800316
OpenVAS Name: Cisco ASA DNS DoS Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/17/2015 🔍
10/21/2015 +65 days 🔍
10/21/2015 +0 days 🔍
10/22/2015 +1 days 🔍
10/22/2015 +0 days 🔍
10/24/2015 +2 days 🔍
11/18/2024 +3313 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20151021-asa-dns2
Status: Confirmed

CVE: CVE-2015-6326 (🔍)
GCVE (CVE): GCVE-0-2015-6326
GCVE (VulDB): GCVE-100-78720
X-Force: 107414 - Cisco Adaptive Security Appliance DNS denial of service
SecurityFocus: 77261
SecurityTracker: 1034156
Vulnerability Center: 53828 - [cisco-sa-20151021-asa-dns2] Cisco ASA Remote DoS via Crafted Requests, High

See also: 🔍

Entryinfo

Created: 10/22/2015 10:03
Updated: 11/18/2024 11:30
Changes: 10/22/2015 10:03 (60), 02/15/2018 11:21 (8), 06/23/2022 20:13 (4), 06/23/2022 20:20 (1), 11/18/2024 11:30 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.