Hostapd up to 2.5 os_random PRNG entropy

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Hostapd up to 2.5. This impacts the function os_random. Executing a manipulation can lead to entropy (PRNG). This vulnerability is registered as CVE-2016-10743. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Hostapd up to 2.5. This vulnerability affects the function os_random. The manipulation with an unknown input leads to a entropy vulnerability (PRNG). The CWE definition for the vulnerability is CWE-332. The lack of entropy available for, or used by, a Pseudo-Random Number Generator (PRNG) can be a stability and security threat. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

hostapd before 2.6 does not prevent use of the low-quality PRNG that is reached by an os_random() function call.

The weakness was published 03/23/2019 (Website). The advisory is available at seclists.org. This vulnerability was named CVE-2016-10743 since 03/23/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1600.001 by the MITRE ATT&CK project.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 197427 (Ubuntu Security Notification for wpa_supplicant and hostapd vulnerabilities (USN-3944-1)).

Upgrading to version 2.6 eliminates this vulnerability.

Similar entries are available at VDB-133473, VDB-133475, VDB-133476 and VDB-133477. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: PRNG
Class: Entropy / PRNG
CWE: CWE-332 / 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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Hostapd 2.6
Patch: w1.fi

Timelineinfo

03/23/2019 🔍
03/23/2019 +0 days 🔍
03/24/2019 +1 days 🔍
08/04/2023 +1594 days 🔍

Sourcesinfo

Advisory: 156573
Status: Confirmed

CVE: CVE-2016-10743 (🔍)
GCVE (CVE): GCVE-0-2016-10743
GCVE (VulDB): GCVE-100-132130
See also: 🔍

Entryinfo

Created: 03/24/2019 11:47
Updated: 08/04/2023 15:49
Changes: 03/24/2019 11:47 (59), 05/19/2020 12:41 (1), 08/04/2023 15:44 (5), 08/04/2023 15:49 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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