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CVE-2021-3139

CVE information

Published

1 year ago

Last Modified

1 year ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

High

Impact Analysis

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..

CVSSv2.0 Score

Severity
Medium
Base Score
5.5/10
Exploit Score
8/10
Access Vector
Network
Access Complexity
Low
Authentication Required
Single
Impact Score
4.9/10
Confidentiality Impact
Partial
Availability Impact
None
Integrity Impact
Partial

CVSSv3.1 Score

Severity
High
Base Score
8.1/10
Exploit Score
2.8/10
Access Vector
Network
Access Complexity
Low
Privileges Required
Low
Impact Score
5.2/10
Confidentiality Impact
High
Availability Impact
None
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:tcmu-runner_project:tcmu-runner:*:*:*:*:*:*:*:*
  Yes
1.3.0 -