wpa_supplicant up to 2.5 passphrase data processing

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in wpa_supplicant up to 2.5 and classified as critical. Impacted is an unknown function. The manipulation of the argument passphrase with the input \n\r leads to data processing. This vulnerability is referenced as CVE-2016-4477. The attack can only be performed from a local environment. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in wpa_supplicant up to 2.5 and classified as critical. This issue affects an unknown part. The manipulation of the argument passphrase with the input value \n\r leads to a data processing vulnerability. Using CWE to declare the problem leads to CWE-19. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

wpa_supplicant 0.4.0 through 2.5 does not reject \n and \r characters in passphrase parameters, which allows local users to trigger arbitrary library loading and consequently gain privileges, or cause a denial of service (daemon outage), via a crafted (1) SET, (2) SET_CRED, or (3) SET_NETWORK command.

The weakness was published 05/09/2016 (Website). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2016-4477 since 05/03/2016. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 91135 (Debian DLA-473-1 : wpa security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196947 (Ubuntu Security Notification for Wpa Vulnerabilities (USN-3455-1) (KRACK Attack)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (91135). Similar entries are available at VDB-80659, VDB-80660, VDB-80661 and VDB-83098. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Data processing
CWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91135
Nessus Name: Debian DLA-473-1 : wpa security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for wpa USN-3455-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

05/03/2016 🔍
05/09/2016 +6 days 🔍
05/09/2016 +0 days 🔍
05/10/2016 +1 days 🔍
05/14/2016 +4 days 🔍
05/16/2016 +2 days 🔍
08/17/2022 +2284 days 🔍

Sourcesinfo

Advisory: USN-3455-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4477 (🔍)
GCVE (CVE): GCVE-0-2016-4477
GCVE (VulDB): GCVE-100-87125
See also: 🔍

Entryinfo

Created: 05/10/2016 10:30
Updated: 08/17/2022 22:54
Changes: 05/10/2016 10:30 (63), 11/23/2018 10:45 (12), 08/17/2022 22:54 (4)
Complete: 🔍
Cache ID: 216:734:103

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