Shim code injection

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Shim. This impacts an unknown function. Performing a manipulation results in code injection. This vulnerability is known as CVE-2014-3677. No exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in Shim (affected version unknown). This affects an unknown functionality. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Unspecified vulnerability in Shim might allow attackers to execute arbitrary code via a crafted MOK list, which triggers memory corruption.

The weakness was published 10/22/2014 with SuSE (Website). It is possible to read the advisory at xforce.iss.net. This vulnerability is uniquely identified as CVE-2014-3677 since 05/14/2014. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 78809 (Fedora 21 : mokutil-0.2.0-1.fc21 / shim-0.8-1.fc22 / shim-signed-0.8-1.fc22 (2014-13581)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170223 (OpenSUSE Security Update for Update for gnu-efi, pesign, shim (openSUSE-SU-2017:1967-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (96989), Tenable (78809), SecurityFocus (BID 70410†) and Vulnerability Center (SBV-46948†). Similar entries are available at VDB-72674 and VDB-72673. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

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

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
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: 78809
Nessus Name: Fedora 21 : mokutil-0.2.0-1.fc21 / shim-0.8-1.fc22 / shim-signed-0.8-1.fc22 (2014-13581)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 80056
OpenVAS Name: Oracle Linux Local Check: ELSA-2014-1801
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/14/2014 🔍
10/13/2014 +152 days 🔍
10/13/2014 +0 days 🔍
10/22/2014 +9 days 🔍
10/22/2014 +0 days 🔍
11/10/2014 +19 days 🔍
03/27/2015 +137 days 🔍
03/30/2022 +2560 days 🔍

Sourcesinfo

Advisory: RHSA-2014:1801
Organization: SuSE
Status: Not defined

CVE: CVE-2014-3677 (🔍)
GCVE (CVE): GCVE-0-2014-3677
GCVE (VulDB): GCVE-100-72675

OVAL: 🔍

X-Force: 96989
SecurityFocus: 70410 - Shim CVE-2014-3677 Memory Corruption Vulnerability
Vulnerability Center: 46948 - Shim Remote Code Execution via a Crafted MOK List, High

See also: 🔍

Entryinfo

Created: 03/27/2015 12:07
Updated: 03/30/2022 19:50
Changes: 03/27/2015 12:07 (59), 06/11/2017 05:16 (8), 03/30/2022 19:41 (3), 03/30/2022 19:50 (1)
Complete: 🔍
Cache ID: 216::103

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

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