Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tcmu-Runner Project | Tcmu-Runner | >= 1.3.0, <= 1.5.2 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/01/13/5Mailing ListMitigationThird Party Advisory
- https://bugzilla.suse.com/attachment.cgi?id=844938Issue TrackingThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1178372Issue TrackingThird Party Advisory
- https://github.com/open-iscsi/tcmu-runner/pull/644PatchThird Party Advisory
- https://www.openwall.com/lists/oss-security/2021/01/12/12Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/01/13/5Mailing ListMitigationThird Party Advisory
- https://bugzilla.suse.com/attachment.cgi?id=844938Issue TrackingThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1178372Issue TrackingThird Party Advisory
- https://github.com/open-iscsi/tcmu-runner/pull/644PatchThird Party Advisory
- https://www.openwall.com/lists/oss-security/2021/01/12/12Mailing ListThird Party Advisory
FAQ
What is CVE-2021-3139?
CVE-2021-3139 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 fil...
How severe is CVE-2021-3139?
CVE-2021-3139 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3139?
Check the references section above for vendor advisories and patch information. Affected products include: Tcmu-Runner Project Tcmu-Runner.