Gentoo Portage up to 2.3.84 Plugin plugins permissions

Summaryinfo

A vulnerability categorized as critical has been discovered in Gentoo Portage up to 2.3.84. This impacts an unknown function in the library /usr/lib64/nagios/plugins of the component Plugin Handler. The manipulation results in permissions. This vulnerability is identified as CVE-2019-20384. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability was found in Gentoo Portage up to 2.3.84. It has been classified as critical. Affected is an unknown functionality in the library /usr/lib64/nagios/plugins of the component Plugin Handler. The manipulation with an unknown input leads to a permissions vulnerability. CWE is classifying the issue as CWE-281. The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Gentoo Portage through 2.3.84 allows local users to place a Trojan horse plugin in the /usr/lib64/nagios/plugins directory by leveraging access to the nagios user account, because this directory is writable in between a call to emake and a call to fowners.

The weakness was released 01/21/2020. This vulnerability is traded as CVE-2019-20384 since 01/20/2020. The attack needs to be approached locally. The successful exploitation needs a authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1222.

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

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Productinfo

Vendor

• Gentoo

Name

• Portage

Version

• 2.3.0
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 2.3.5
• 2.3.6
• 2.3.7
• 2.3.8
• 2.3.9
• 2.3.10
• 2.3.11
• 2.3.12
• 2.3.13
• 2.3.14
• 2.3.15
• 2.3.16
• 2.3.17
• 2.3.18
• 2.3.19
• 2.3.20
• 2.3.21
• 2.3.22
• 2.3.23
• 2.3.24
• 2.3.25
• 2.3.26
• 2.3.27
• 2.3.28
• 2.3.29
• 2.3.30
• 2.3.31
• 2.3.32
• 2.3.33
• 2.3.34
• 2.3.35
• 2.3.36
• 2.3.37
• 2.3.38
• 2.3.39
• 2.3.40
• 2.3.41
• 2.3.42
• 2.3.43
• 2.3.44
• 2.3.45
• 2.3.46
• 2.3.47
• 2.3.48
• 2.3.49
• 2.3.50
• 2.3.51
• 2.3.52
• 2.3.53
• 2.3.54
• 2.3.55
• 2.3.56
• 2.3.57
• 2.3.58
• 2.3.59
• 2.3.60
• 2.3.61
• 2.3.62
• 2.3.63
• 2.3.64
• 2.3.65
• 2.3.66
• 2.3.67
• 2.3.68
• 2.3.69
• 2.3.70
• 2.3.71
• 2.3.72
• 2.3.73
• 2.3.74
• 2.3.75
• 2.3.76
• 2.3.77
• 2.3.78
• 2.3.79
• 2.3.80
• 2.3.81
• 2.3.82
• 2.3.83
• 2.3.84

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

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