wpa_supplicant up to 2.6 EAPOL-Key Message rsn_supp/wpa.c Oracle key management

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in wpa_supplicant up to 2.6. Affected by this issue is some unknown functionality of the file rsn_supp/wpa.c of the component EAPOL-Key Message Handler. Performing a manipulation results in key management (Oracle). This vulnerability is cataloged as CVE-2018-14526. The attack may be carried out on the physical device. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in wpa_supplicant up to 2.6. It has been classified as critical. This affects an unknown functionality of the file rsn_supp/wpa.c of the component EAPOL-Key Message Handler. The manipulation with an unknown input leads to a key management vulnerability (Oracle). CWE is classifying the issue as CWE-320. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in rsn_supp/wpa.c in wpa_supplicant 2.0 through 2.6. Under certain conditions, the integrity of EAPOL-Key messages is not checked, leading to a decryption oracle. An attacker within range of the Access Point and client can abuse the vulnerability to recover sensitive information.

The bug was discovered 08/08/2018. The weakness was shared 08/08/2018 (Website). It is possible to read the advisory at securitytracker.com. This vulnerability is uniquely identified as CVE-2018-14526 since 07/22/2018. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 112101 (Fedora 27 : 1:wpa_supplicant (2018-c43c1ee06f)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 172368 (OpenSUSE Security Update for wpa_supplicant (openSUSE-SU-2019:1345-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (112101). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Oracle
Class: Key management / Oracle
CWE: CWE-320
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 112101
Nessus Name: Fedora 27 : 1:wpa_supplicant (2018-c43c1ee06f)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

07/22/2018 🔍
08/08/2018 +17 days 🔍
08/08/2018 +0 days 🔍
08/08/2018 +0 days 🔍
08/09/2018 +1 days 🔍
08/23/2018 +14 days 🔍
08/24/2018 +1 days 🔍
05/01/2023 +1711 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-c43c1ee06f⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-14526 (🔍)
GCVE (CVE): GCVE-0-2018-14526
GCVE (VulDB): GCVE-100-122739
SecurityTracker: 1041438

Entryinfo

Created: 08/09/2018 07:11
Updated: 05/01/2023 10:23
Changes: 08/09/2018 07:11 (71), 03/14/2020 09:46 (4), 05/01/2023 10:17 (5), 05/01/2023 10:23 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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