OpenBSD Random Number Generator lib/libc/stdlib/random.c prng seed

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenBSD. It has been declared as problematic. This affects an unknown function in the library lib/libc/stdlib/random.c of the component Random Number Generator. The manipulation results in prng seed. This vulnerability is known as CVE-2012-1577. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in OpenBSD (Operating System) (version now known). Affected is some unknown processing in the library lib/libc/stdlib/random.c of the component Random Number Generator. The manipulation with an unknown input leads to a prng seed vulnerability. CWE is classifying the issue as CWE-335. The product uses a Pseudo-Random Number Generator (PRNG) but does not correctly manage seeds. This is going to have an impact on confidentiality. CVE summarizes:

lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.

The weakness was published 12/10/2019 (Website). The advisory is shared for download at cvsweb.openbsd.org. This vulnerability is traded as CVE-2012-1577 since 03/12/2012. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/11/2019). The MITRE ATT&CK project declares the attack technique as T1600.001.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Prng seed
CWE: CWE-335 / CWE-331 / CWE-330
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/12/2012 🔍
12/10/2019 +2829 days 🔍
12/11/2019 +1 days 🔍
12/11/2019 +0 days 🔍

Sourcesinfo

Advisory: cvsweb.openbsd.org
Status: Not defined

CVE: CVE-2012-1577 (🔍)
GCVE (CVE): GCVE-0-2012-1577
GCVE (VulDB): GCVE-100-146880

Entryinfo

Created: 12/11/2019 10:20
Updated: 12/11/2019 10:25
Changes: 12/11/2019 10:20 (37), 12/11/2019 10:25 (18)
Complete: 🔍
Cache ID: 216::103

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