OpenSSL up to 1.0.1j Bignum Square BN_sqr cryptographic issue

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.
3.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in OpenSSL. It has been classified as problematic. This affects the function BN_sqr of the component Bignum Square Handler. This manipulation causes cryptographic issue. This vulnerability is handled as CVE-2014-3570. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in OpenSSL (Network Encryption Software) and classified as problematic. Affected by this vulnerability is the function BN_sqr of the component Bignum Square Handler. The manipulation with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect integrity.

The weakness was released 01/08/2015 by Pieter Wuille with Blockstream as secadv_20150108.txt as confirmed advisory (Website). The advisory is shared at openssl.org. The public release was coordinated with the project team. This vulnerability is known as CVE-2014-3570 since 05/14/2014. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1600 for this issue. The advisory points out:

Bignum squaring (BN_sqr) may produce incorrect results on some platforms, including x86_64. This bug occurs at random with a very low probability, and is not known to be exploitable in any way, though its exact impact is difficult to determine.

The vulnerability was handled as a non-public zero-day exploit for at least 67 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 80471 (Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : openssl vulnerabilities (USN-2459-1) (FREAK)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185099 (HP-UX Running OpenSSL Multiple Vulnerabilities (HPSBUX03244)).

Upgrading to version 0.9.8zd, 1.0.0p or 1.0.1k eliminates this vulnerability. A possible mitigation has been published 4 days after the disclosure of the vulnerability. The advisory contains the following remark:

The final fix was developed by Andy Polyakov of the OpenSSL core team.

The vulnerability is also documented in the databases at X-Force (99710), Tenable (80471), SecurityFocus (BID 71935†) and SecurityTracker (ID 1031513†). Entries connected to this vulnerability are available at VDB-68514, VDB-68515, VDB-68516 and VDB-68517. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Network Encryption Software

Name

• OpenSSL

Version

• 0.9.8zc
• 1.0.0a
• 1.0.0b
• 1.0.0c
• 1.0.0d
• 1.0.0e
• 1.0.0f
• 1.0.0g
• 1.0.0h
• 1.0.0i
• 1.0.0j
• 1.0.0k
• 1.0.0l
• 1.0.0m
• 1.0.0n
• 1.0.0o
• 1.0.1a
• 1.0.1b
• 1.0.1c
• 1.0.1d
• 1.0.1e
• 1.0.1f
• 1.0.1g
• 1.0.1h
• 1.0.1i
• 1.0.1j

License

• open-source

Support

• end of life (old version)

Website

• Product: https://www.openssl.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.7
VulDB Temp Score: 3.2
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: Cryptographic issue
CWE: CWE-310
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: 80471
Nessus Name: Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : openssl vulnerabilities (USN-2459-1) (FREAK)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 58866
OpenVAS Name: RedHat Update for openssl RHSA-2015:0066-01
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 0.9.8zd/1.0.0p/1.0.1k
Patch: github.com

Timelineinfo

05/14/2014 🔍
11/02/2014 +172 days 🔍
01/08/2015 +67 days 🔍
01/08/2015 +0 days 🔍
01/08/2015 +0 days 🔍
01/08/2015 +0 days 🔍
01/09/2015 +1 days 🔍
01/12/2015 +3 days 🔍
01/13/2015 +1 days 🔍
03/02/2022 +2604 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: secadv_20150108.txt
Researcher: Pieter Wuille
Organization: Blockstream
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2014-3570 (🔍)
GCVE (CVE): GCVE-0-2014-3570
GCVE (VulDB): GCVE-100-68521

OVAL: 🔍

X-Force: 99710 - OpenSSL Bignum unspecified, Low Risk
SecurityFocus: 71935 - OpenSSL Certificate Fingerprints CVE-2014-8275 Local Security Bypass Vulnerability
SecurityTracker: 1031513

See also: 🔍

Entryinfo

Created: 01/09/2015 09:46
Updated: 03/02/2022 00:51
Changes: 01/09/2015 09:46 (88), 05/02/2019 16:44 (3), 03/02/2022 00:51 (4)
Complete: 🔍
Cache ID: 216::103

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

Discussion

Want to know what is going to be exploited?

We predict KEV entries!