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CVE ID: CVE-2022-33915

Last updated: July 5, 2022, 7:43 p.m.

Severity: MEDIUM

Description

Versions of the Amazon AWS Apache Log4j hotpatch package before log4j-cve-2021-44228-hotpatch-1.3.5 are affected by a race condition that could lead to a local privilege escalation. This Hotpatch package is not a replacement for updating to a log4j version that mitigates CVE-2021-44228 or CVE-2021-45046; it provides a temporary mitigation to CVE-2021-44228 by hotpatching the local Java virtual machines. To do so, it iterates through all running Java processes, performs several checks, and executes the Java virtual machine with the same permissions and capabilities as the running process to load the hotpatch. A local user could cause the hotpatch script to execute a binary with elevated privileges by running a custom java process that performs exec() of an SUID binary after the hotpatch has observed the process path and before it has observed its effective user ID.

Severity score: 6.4 Base score: 4.4 Exploitability score: 3.4 Confidentiality impact: PARTIAL Integrity impact: PARTIAL User interaction required: False Published: June 17, 2022, 1:15 p.m. Data type: CVE Data format: MITRE Assigner: cve@mitre.org Problem type: CWE-362 Reference url: https://alas.aws.amazon.com/ALAS-2022-1601.html Reference name: https://alas.aws.amazon.com/ALAS-2022-1601.html Reference source: MISC CVE version: 2.0 Vector string: AV:L/AC:M/Au:N/C:P/I:P/A:P Access vector: LOCAL Access complexity: MEDIUM Authentication: NONE Base severity: AcInsf info: False Obtain all priviledges: False User privilege: False Other privilege: False

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