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User Interaction
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Privileges Required
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Attack Vector
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0

mount.ecrpytfs_private sets group owner of /etc/mtab to user's primary group

Disclosure Date: April 22, 2019
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

When mount.ecrpytfs_private before version 87-0ubuntu1.2 calls setreuid() it doesn’t also set the effective group id. So when it creates the new version, mtab.tmp, it’s created with the group id of the user running mount.ecryptfs_private.

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CVSS V3 Severity and Metrics
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Impact Score:
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Exploitability Score:
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Attack Vector (AV):
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Attack Complexity (AC):
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User Interaction (UI):
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Scope (S):
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Confidentiality (C):
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Integrity (I):
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Availability (A):
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General Information

Vendors

  • mount.ecrpytfs private project

Products

  • mount.ecrpytfs private -

Additional Info

Technical Analysis