OpenSSL 0.9.8/1.0.0/1.0.1/1.0.2 ASN.1 code

EntryHistoryDiffjsonxmlCTI

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.
6.4	$0-$5k	0.00

A vulnerability was found in OpenSSL 0.9.8/1.0.0/1.0.1/1.0.2 (Network Encryption Software) and classified as very critical. Affected by this issue is some unknown functionality of the component ASN.1. The manipulation with an unknown input leads to a code vulnerability. Using CWE to declare the problem leads to CWE-17. Impacted is confidentiality, integrity, and availability.

The issue has been introduced in 07/05/2005. The weakness was presented 03/19/2015 as secadv_20150319.txt as confirmed advisory (Website). The advisory is shared for download at openssl.org. This vulnerability is handled as CVE-2015-0287 since 11/18/2014. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/15/2022).

The vulnerability was handled as a non-public zero-day exploit for at least 3544 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 82900 (AIX OpenSSL Advisory : openssl_advisory13.asc), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks and running in the context l. The Nessus plugin is testing the existence of the vulnerability with the following NASL code:

if (aix_check_ifix(release:"5.3", patch:"IV71446m9b", package:"openssl.base", minfilesetver:"0.0.0.0", maxfilesetver:"0.9.8.2504") < 0) flag++;
if (aix_check_ifix(release:"6.1", patch:"IV71446m9b", package:"openssl.base", minfilesetver:"0.0.0.0", maxfilesetver:"0.9.8.2504") < 0) flag++;
if (aix_check_ifix(release:"7.1", patch:"IV71446m9b", package:"openssl.base", minfilesetver:"0.0.0.0", maxfilesetver:"0.9.8.2504") < 0) flag++;

The commercial vulnerability scanner Qualys is able to test this issue with plugin 185104 (HP-UX Running OpenSSL Remote Denial of Service Vulnerability (HPSBUX03334)).

Upgrading to version 0.9.8zf, 1.0.0r, 1.0.1m or 1.0.2a 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 X-Force (101668) and Tenable (82900). grahamcluley.com is providing further details. See 74043, 74044, 74045 and 74046 for similar entries.

Productinfo

Type

Network Encryption Software

Name

OpenSSL

Version

License

open-source

Support

end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
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: Code
CWE: CWE-17
ATT&CK: Unknown

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: 82900
Nessus Name: AIX OpenSSL Advisory : openssl_advisory13.asc
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800731
OpenVAS Name: Fedora Update for openssl FEDORA-2015-4303
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: 🔍

Upgrade: OpenSSL 0.9.8zf/1.0.0r/1.0.1m/1.0.2a
Patch: b717b083073b6cacc0a5e2397b661678aff7ae7f
ISS Proventia IPS: 🔍

Timelineinfo

07/05/2005 🔍
11/18/2014 +3423 days 🔍
03/16/2015 +118 days 🔍
03/19/2015 +3 days 🔍
03/19/2015 +0 days 🔍
03/19/2015 +0 days 🔍
03/19/2015 +0 days 🔍
03/20/2015 +1 days 🔍
04/20/2015 +31 days 🔍
09/16/2015 +149 days 🔍
09/17/2015 +1 days 🔍
04/15/2022 +2402 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: secadv_20150319.txt
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-0287 (🔍)
OVAL: 🔍

X-Force: 101668 - OpenSSL ASN.1 code execution
SecurityTracker: 1031929
Vulnerability Center: 52784 - OpenSSL Remote DoS in the ASN1_item_ex_d2i Function - CVE-2015-0287, Medium
SecurityFocus: 73227 - OpenSSL 'tasn_dec.c' Remote Memory Corruption Vulnerability

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 03/20/2015 09:51
Updated: 04/15/2022 21:07
Changes: 03/20/2015 09:51 (82), 11/06/2018 08:01 (7), 04/15/2022 21:07 (5)
Complete: 🔍