wpa_supplicant up to 2.5 Network Configuration eap_peer/eap_pwd.c eap_pwd_process EAP-pwd Message memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in wpa_supplicant up to 2.5. This affects the function eap_pwd_process of the file eap_peer/eap_pwd.c of the component Network Configuration. Performing a manipulation as part of EAP-pwd Message results in memory corruption. This vulnerability is cataloged as CVE-2015-5315. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in wpa_supplicant up to 2.5. It has been classified as problematic. This affects the function eap_pwd_process of the file eap_peer/eap_pwd.c of the component Network Configuration. The manipulation as part of a EAP-pwd Message leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. The summary by CVE is:

The eap_pwd_process function in eap_peer/eap_pwd.c in wpa_supplicant 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when EAP-pwd is enabled in a network configuration profile, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message.

The bug was discovered 07/01/2015. The weakness was shared 02/21/2018 (oss-sec). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2015-5315 since 07/01/2015. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 293 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 90568 (FreeBSD : hostapd and wpa_supplicant -- multiple vulnerabilities (976567f6-05c5-11e6-94fa-002590263bf5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175554 (Debian Security Update for wpa (DSA 3397-1)).

Upgrading to version 2.6 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (90568). The entries VDB-75892, VDB-113648 and VDB-113650 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
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: Memory corruption
CWE: CWE-119
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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Nessus ID: 90568
Nessus Name: FreeBSD : hostapd and wpa_supplicant -- multiple vulnerabilities (976567f6-05c5-11e6-94fa-002590263bf5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for wpa USN-2808-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: wpa_supplicant 2.6

Timelineinfo

07/01/2015 🔍
07/01/2015 +0 days 🔍
04/19/2016 +293 days 🔍
04/19/2016 +0 days 🔍
02/21/2018 +673 days 🔍
02/21/2018 +0 days 🔍
02/22/2018 +1 days 🔍
02/08/2023 +1812 days 🔍

Sourcesinfo

Advisory: USN-2808-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-5315 (🔍)
GCVE (CVE): GCVE-0-2015-5315
GCVE (VulDB): GCVE-100-113649

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 02/22/2018 07:26
Updated: 02/08/2023 16:12
Changes: 02/22/2018 07:26 (76), 01/07/2020 14:25 (2), 02/08/2023 16:12 (4)
Complete: 🔍
Cache ID: 216:547:103

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

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