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.
5.2	$0-$5k	0.00

A vulnerability was found in IPsec-Tools 0.8.2. It has been declared as problematic. Affected by this vulnerability is an unknown function of the file racoon/gssapi.c of the component UDP Request Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

racoon/gssapi.c in IPsec-Tools 0.8.2 allows remote attackers to cause a denial of service (NULL pointer dereference and IKE daemon crash) via a series of crafted UDP requests.

The weakness was disclosed 05/29/2015 by Javantea (Website). It is possible to read the advisory at altsci.com. This vulnerability is known as CVE-2015-4047 since 05/20/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 83906 (Debian DLA-234-1 : ipsec-tools security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Proper firewalling of UDP Ports is able to address this issue. A possible mitigation has been published 1 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (83906). The entry VDB-171652 is pretty similar.

Productinfo

Name

• IPsec-Tools

Version

• 0.8.2

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
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: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 83906
Nessus Name: Debian DLA-234-1 : ipsec-tools security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 703272
OpenVAS Name: Debian Security Advisory DSA 3272-1 (ipsec-tools - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

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

Firewalling: 🔍

Timelineinfo

05/19/2015 🔍
05/20/2015 +1 days 🔍
05/29/2015 +9 days 🔍
05/29/2015 +0 days 🔍
05/30/2015 +1 days 🔍
05/30/2015 +0 days 🔍
06/01/2015 +2 days 🔍
01/28/2016 +241 days 🔍
03/21/2016 +53 days 🔍
05/19/2022 +2250 days 🔍

Sourcesinfo

Advisory: USN-2623-1
Researcher: Javantea
Status: Not defined

CVE: CVE-2015-4047 (🔍)
OVAL: 🔍

SecurityTracker: 1032397
Vulnerability Center: 57446 - IPsec-Tools 0.8.2 Remote DoS via Crafted UDP Requests, High
SecurityFocus: 74739 - IPsec-Tools NULL Pointer Dereference Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 05/30/2015 20:11
Updated: 05/19/2022 15:58
Changes: 05/30/2015 20:11 (69), 02/01/2019 14:49 (6), 05/19/2022 15:58 (4)
Complete: 🔍
Cache ID: 18:EF0:103

Discussion

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