CVE-2021-3139
Published: 13 January 2021
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.
Notes
Author | Note |
---|---|
alexmurray | Related to CVE-2020-28374 |
Priority
Status
Package | Release | Status |
---|---|---|
tcmu Launchpad, Ubuntu, Debian |
impish |
Ignored
(end of life)
|
jammy |
Needed
|
|
bionic |
Does not exist
|
|
focal |
Released
(1.5.2-5ubuntu0.20.04.1)
|
|
groovy |
Released
(1.5.2-5ubuntu0.20.10.1)
|
|
hirsute |
Ignored
(end of life)
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
kinetic |
Ignored
(end of life, was needed)
|
|
mantic |
Needed
|
|
lunar |
Ignored
(end of life, was needed)
|
|
Patches: upstream: https://github.com/open-iscsi/tcmu-runner/commit/b4a986b0d1233a8a6f2d340133c2efaa1d9e8c14 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.1 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |