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.
5.7	$0-$5k	0.00

A vulnerability, which was classified as critical, has been found in OpenSSL FIPS Object Module 1.1.1 (Network Encryption Software). This issue affects some unknown processing of the component OpenSSL. The manipulation with an unknown input leads to a cryptographic issues vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is confidentiality, and integrity. The summary by CVE is:

The PRNG implementation for the OpenSSL FIPS Object Module 1.1.1 does not perform auto-seeding during the FIPS self-test, which generates random data that is more predictable than expected and makes it easier for attackers to bypass protection mechanisms that rely on the randomness.

The weakness was shared 12/01/2007 by Geoff as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. The identification of this vulnerability is CVE-2007-5502 since 10/17/2007. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

It is declared as proof-of-concept.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at X-Force (38796).

Productinfo

Type

• Network Encryption Software

Vendor

• OpenSSL

Name

• FIPS Object Module

Version

• 1.1.1

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
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 issues
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/17/2007 🔍
11/29/2007 +43 days 🔍
11/30/2007 +1 days 🔍
11/30/2007 +0 days 🔍
12/01/2007 +1 days 🔍
12/01/2007 +0 days 🔍
03/16/2015 +2662 days 🔍
11/05/2017 +965 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: Geoff
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-5502 (🔍)
X-Force: 38796 - OpenSSL FIPS Object Module PRNG implementation security bypass
SecurityTracker: 1019029 - OpenSSL FIPS Object Module Self-Test Error Causes the System to Generate More Predictable Pseudo Random Data
SecurityFocus: 26652 - OpenSSL FIPS Object Module PRNG Seed Vulnerability
Secunia: 27859 - OpenSSL FIPS Object Module PRNG Security Issue, Less Critical
Vupen: ADV-2007-4044

Entryinfo

Created: 03/16/2015 13:43
Updated: 11/05/2017 08:30
Changes: 03/16/2015 13:43 (61), 11/05/2017 08:30 (7)
Complete: 🔍

Discussion

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