dmcrypt-get-device on Debian/Ubuntu setuid/setgid 7pk error

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in dmcrypt-get-device on Debian/Ubuntu. Impacted is the function setuid/setgid. The manipulation leads to 7pk error. This vulnerability is referenced as CVE-2017-6964. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in dmcrypt-get-device on Debian/Ubuntu (the affected version is unknown) and classified as critical. This issue affects the function setuid/setgid. The manipulation with an unknown input leads to a 7pk error vulnerability. Using CWE to declare the problem leads to CWE-388. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

dmcrypt-get-device, as shipped in the eject package of Debian and Ubuntu, does not check the return value of the (1) setuid or (2) setgid function, which might cause dmcrypt-get-device to execute code, which was intended to run as an unprivileged user, as root. This affects eject through 2.1.5+deb1+cvs20081104-13.1 on Debian, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.16.10.1 on Ubuntu 16.10, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.16.04.1 on Ubuntu 16.04 LTS, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.14.04.1 on Ubuntu 14.04 LTS, and eject before 2.1.5+deb1+cvs20081104-9ubuntu0.1 on Ubuntu 12.04 LTS.

The bug was discovered 03/16/2017. The weakness was published 03/28/2017 (Website). The advisory is shared at launchpad.net. The identification of this vulnerability is CVE-2017-6964 since 03/17/2017. The attack may be initiated remotely. A simple 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 11 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 99025 (Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : eject vulnerability (USN-3246-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175998 (Debian Security Update for eject (DSA 3823-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99025) and SecurityFocus (BID 97154†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk error
CWE: CWE-388
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99025
Nessus Name: Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : eject vulnerability (USN-3246-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703823
OpenVAS Name: Debian Security Advisory DSA 3823-1 (eject - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/16/2017 🔍
03/17/2017 +1 days 🔍
03/27/2017 +10 days 🔍
03/27/2017 +0 days 🔍
03/27/2017 +0 days 🔍
03/28/2017 +1 days 🔍
03/28/2017 +0 days 🔍
03/28/2017 +0 days 🔍
08/25/2024 +2706 days 🔍

Sourcesinfo

Advisory: usn-3246-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-6964 (🔍)
GCVE (CVE): GCVE-0-2017-6964
GCVE (VulDB): GCVE-100-99005

OVAL: 🔍

SecurityFocus: 97154 - Eject dmcrypt-get-device CVE-2017-6964 Local Code Execution Vulnerability
OSVDB: - CVE-2017-6964 - Debian, Ubuntu - Code Execution Issue

Entryinfo

Created: 03/28/2017 22:31
Updated: 08/25/2024 00:23
Changes: 03/28/2017 22:31 (71), 08/23/2020 14:37 (6), 11/22/2022 19:11 (4), 08/25/2024 00:23 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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