8.1
HIGH
CVE-2021-3139
Open-iSCSI XCOPY Directory Traversal
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.

INFO

Published Date :

Jan. 13, 2021, 4:15 p.m.

Last Modified :

Jan. 22, 2021, 6:25 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.2

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-3139 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Tcmu-runner_project tcmu-runner
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-3139.

URL Resource
http://www.openwall.com/lists/oss-security/2021/01/13/5 Mailing List Mitigation Third Party Advisory
https://bugzilla.suse.com/attachment.cgi?id=844938 Issue Tracking Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1178372 Issue Tracking Third Party Advisory
https://github.com/open-iscsi/tcmu-runner/pull/644 Patch Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/01/12/12 Mailing List Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-3139 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-3139 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jan. 22, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/01/13/5 No Types Assigned http://www.openwall.com/lists/oss-security/2021/01/13/5 Mailing List, Mitigation, Third Party Advisory
    Changed Reference Type https://bugzilla.suse.com/attachment.cgi?id=844938 No Types Assigned https://bugzilla.suse.com/attachment.cgi?id=844938 Issue Tracking, Third Party Advisory
    Changed Reference Type https://bugzilla.suse.com/show_bug.cgi?id=1178372 No Types Assigned https://bugzilla.suse.com/show_bug.cgi?id=1178372 Issue Tracking, Third Party Advisory
    Changed Reference Type https://github.com/open-iscsi/tcmu-runner/pull/644 No Types Assigned https://github.com/open-iscsi/tcmu-runner/pull/644 Patch, Third Party Advisory
    Changed Reference Type https://www.openwall.com/lists/oss-security/2021/01/12/12 No Types Assigned https://www.openwall.com/lists/oss-security/2021/01/12/12 Mailing List, Third Party Advisory
    Added CWE NIST CWE-22
    Added CPE Configuration OR *cpe:2.3:a:tcmu-runner_project:tcmu-runner:*:*:*:*:*:*:*:* versions from (including) 1.3.0 up to (including) 1.5.2
  • CVE Modified by [email protected]

    Jan. 14, 2021

    Action Type Old Value New Value
    Added Reference https://github.com/open-iscsi/tcmu-runner/pull/644 [No Types Assigned]
    Added Reference http://www.openwall.com/lists/oss-security/2021/01/13/5 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-3139 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.17 }} 0.00%

score

0.52377

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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