Cisco ASA 1000V/5000 ISAKMP Packet UDP 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 identified as problematic has been detected in Cisco ASA 1000V/5000. Affected by this issue is some unknown functionality of the component ISAKMP Packet Handler. Performing a manipulation as part of UDP Packet results in resource management. This vulnerability is reported as CVE-2015-6327. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in Cisco ASA 1000V/5000 (Firewall Software). This affects some unknown functionality of the component ISAKMP Packet Handler. The manipulation as part of a UDP Packet 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 disclosed 10/21/2015 with Cisco as cisco-sa-20151021-asa-ike as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2015-6327 since 08/17/2015. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 93531 (Cisco ASA IKEv1 ISAKMP Packet Handling DoS (cisco-sa-20151021-asa-ike)), 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 43040 (Cisco ASA Software VPN ISAKMP Denial of Service Vulnerability (cisco-sa-20151021-asa-ike)).

It is possible to mitigate the weakness by firewalling udp/500 (isakmp).

The vulnerability is also documented in the databases at X-Force (107411), Tenable (93531), SecurityFocus (BID 77262†) and Vulnerability Center (SBV-53842†). The entries VDB-78720, VDB-78719 and VDB-78718 are pretty similar. 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: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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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: 93531
Nessus Name: Cisco ASA IKEv1 ISAKMP Packet Handling DoS (cisco-sa-20151021-asa-ike)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 800316
OpenVAS Name: Cisco ASA VPN ISAKMP 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: 🔍

Firewalling: 🔍

Timelineinfo

08/17/2015 🔍
10/21/2015 +65 days 🔍
10/21/2015 +0 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-ike
Organization: Cisco
Status: Confirmed

CVE: CVE-2015-6327 (🔍)
GCVE (CVE): GCVE-0-2015-6327
GCVE (VulDB): GCVE-100-78717
X-Force: 107411 - Cisco Adaptive Security Appliance ISAKMP denial of service
SecurityFocus: 77262 - Cisco Adaptive Security Appliance (ASA) Software CVE-2015-6327 Denial of Service Vulnerability
SecurityTracker: 1033914
Vulnerability Center: 53842 - [cisco-sa-20151021-asa-ike] Cisco ASA Remote DoS via Crafted UDP Packets, High

See also: 🔍

Entryinfo

Created: 10/22/2015 10:02
Updated: 11/18/2024 11:30
Changes: 10/22/2015 10:02 (63), 02/15/2018 11:22 (11), 06/23/2022 19:28 (4), 06/23/2022 19:35 (1), 11/18/2024 11:30 (16)
Complete: 🔍
Cache ID: 216:DA1:103

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