Vulnerability Details CVE-2021-3139
In Open-iSCSI tcmu-runner 1.3.x, 1.4.x, and 1.5.x through 1.5.2, xcopy_locate_udev in tcmur_cmd_handler.c lacks a check for transport-layer restrictions, allowing remote attackers to read or write files via directory traversal in an XCOPY request. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. NOTE: relative to CVE-2020-28374, this is a similar mistake in a different algorithm.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.009
EPSS Ranking 75.2%
CVSS Severity
CVSS v3 Score 8.1
CVSS v2 Score 5.5
References
- http://www.openwall.com/lists/oss-security/2021/01/13/5
- https://bugzilla.suse.com/attachment.cgi?id=844938
- https://bugzilla.suse.com/show_bug.cgi?id=1178372
- https://github.com/open-iscsi/tcmu-runner/pull/644
- https://www.openwall.com/lists/oss-security/2021/01/12/12
- http://www.openwall.com/lists/oss-security/2021/01/13/5
- https://bugzilla.suse.com/attachment.cgi?id=844938
- https://bugzilla.suse.com/show_bug.cgi?id=1178372
- https://github.com/open-iscsi/tcmu-runner/pull/644
- https://www.openwall.com/lists/oss-security/2021/01/12/12
Products affected by CVE-2021-3139
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cpe:2.3:a:tcmu-runner_project:tcmu-runner:1.3.0
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cpe:2.3:a:tcmu-runner_project:tcmu-runner:1.4.0
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cpe:2.3:a:tcmu-runner_project:tcmu-runner:1.4.1
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cpe:2.3:a:tcmu-runner_project:tcmu-runner:1.5.0
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cpe:2.3:a:tcmu-runner_project:tcmu-runner:1.5.1
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cpe:2.3:a:tcmu-runner_project:tcmu-runner:1.5.2