OpenBMC phosphor-host-ipmid prior 2020-04-03 File Permission passwd_mgr.cpp default permission

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in OpenBMC phosphor-host-ipmid. This vulnerability affects unknown code of the file user_channel/passwd_mgr.cpp of the component File Permission. Performing a manipulation results in default permission. This vulnerability was named CVE-2020-14156. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in OpenBMC phosphor-host-ipmid. This affects some unknown functionality of the file user_channel/passwd_mgr.cpp of the component File Permission. The manipulation with an unknown input leads to a default permission vulnerability. CWE is classifying the issue as CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

user_channel/passwd_mgr.cpp in OpenBMC phosphor-host-ipmid before 2020-04-03 does not ensure that /etc/ipmi-pass has strong file permissions.

The weakness was presented 06/15/2020 (GitHub Repository). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2020-14156 since 06/15/2020. The exploitability is told to be easy. It is possible to initiate the attack remotely. A authentication is required for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

Upgrading to version 2020-04-03 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

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

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: Default permission
CWE: CWE-276 / CWE-266
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: phosphor-host-ipmid 2020-04-03

Timelineinfo

04/03/2020 🔍
06/15/2020 +73 days 🔍
06/15/2020 +0 days 🔍
06/16/2020 +1 days 🔍
10/24/2020 +130 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-14156 (🔍)
GCVE (CVE): GCVE-0-2020-14156
GCVE (VulDB): GCVE-100-156753

Entryinfo

Created: 06/16/2020 11:51
Updated: 10/24/2020 17:10
Changes: 06/16/2020 11:51 (40), 06/16/2020 11:56 (17), 10/24/2020 17:10 (1)
Complete: 🔍
Cache ID: 216::103

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

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