OpenSSL up to 0.9.6b null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenSSL. It has been classified as problematic. The affected element is an unknown function. Performing a manipulation results in null pointer dereference. This vulnerability is reported as CVE-2009-1386. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in OpenSSL (Network Encryption Software). It has been classified as problematic. This affects an unknown code block. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

ssl/s3_pkt.c in OpenSSL before 0.9.8i allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a DTLS ChangeCipherSpec packet that occurs before ClientHello.

The bug was discovered 04/23/2009. The weakness was disclosed 06/04/2009 by Jon Oberheide (Alex) (Website). The advisory is shared at cvs.openssl.org. This vulnerability is uniquely identified as CVE-2009-1386 since 04/23/2009. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Jon Oberheide in ANSI C and been published immediately after the advisory. The exploit is shared for download at securityfocus.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 17761 (OpenSSL < 0.9.8i Denial of Service), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86880 (HP System Management Homepage Cross-Site Scripting and Denial of Service Vulnerabilities (c02029444)).

Upgrading to version 0.9.6b-3 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (50963), Exploit-DB (8873), Tenable (17761), SecurityFocus (BID 35174†) and OSVDB (55073†). The entries VDB-41652, VDB-45748, VDB-45179 and VDB-48418 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Jon Oberheide
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 17761
Nessus Name: OpenSSL < 0.9.8i Denial of Service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 64920
OpenVAS Name: Debian Security Advisory DSA 1888-1 (openssl, openssl097)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: dtls_changecipherspec.rb
MetaSploit Name: Solaris LPD Arbitrary File Delete
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: OpenSSL 0.9.6b-3
McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

09/15/2008 🔍
04/23/2009 +220 days 🔍
04/23/2009 +0 days 🔍
04/23/2009 +0 days 🔍
06/02/2009 +40 days 🔍
06/04/2009 +2 days 🔍
06/04/2009 +0 days 🔍
06/04/2009 +0 days 🔍
06/04/2009 +0 days 🔍
06/22/2009 +18 days 🔍
01/04/2012 +926 days 🔍
03/17/2015 +1168 days 🔍
11/30/2024 +3546 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: cvs.openssl.org
Researcher: Jon Oberheide (Alex)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-1386 (🔍)
GCVE (CVE): GCVE-0-2009-1386
GCVE (VulDB): GCVE-100-48417

OVAL: 🔍

X-Force: 50963
SecurityFocus: 35174 - OpenSSL 'ChangeCipherSpec' DTLS Packet Denial of Service Vulnerability
Secunia: 35571
OSVDB: 55073 - CVE-2009-1386 - OpenSSL - Denial-Of-Service Issue
Vulnerability Center: 22629 - OpenSSL < 0.9.8i DTLS ChangeCipherSpec Packet Remote DoS Vulnerability, Medium
Vupen: ADV-2010-0528

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/17/2015 23:38
Updated: 11/30/2024 22:46
Changes: 03/17/2015 23:38 (87), 09/06/2019 15:02 (8), 11/30/2024 22:46 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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