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Fencer Intel
medium 5.5

CVE-2020-13867 json

Open-iSCSI targetcli-fb through 2.1.52 has weak permissions for /etc/target (and for the backup directory and backup files).

published 6y ago modified 4mo ago also EUVD-2020-6078

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits
0
none known

Summary

Open-iSCSI targetcli-fb through 2.1.52 has weak permissions for /etc/target (and for the backup directory and backup files).

Patch / fix

  • targetcli-fb Debian 14, Debian 13, Debian 12 1:2.1.53-1

debian advisories DEBIAN-CVE-2020-13867

  • targetcli-fb Ubuntu Pro 20.04 LTS 1:2.1.51-0ubuntu1+esm1

ubuntu advisories UBUNTU-CVE-2020-13867

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • targetcli RHEL 7 2.1.53-1.el7_9
  • targetcli RHEL 8 2.1.53-1.el8

red hat advisories RHSA-2020:5434RHSA-2020:4697

  • targetcli-fb SLES for SAP 12 SP5, SLES 12 SP5 2.1.43-7.9.4
  • targetcli-fb SLE Module for Python 2 15 SP2, SLE Module for Basesystem 15 SP2 2.1.52-3.3.1
  • targetcli-fb SLE Module for Python 2 15 SP1, SLE Module for Basesystem 15 SP1 2.1.49-10.9.1

suse advisories SUSE-SU-2020:2360-1SUSE-SU-2020:2101-1SUSE-SU-2020:2086-1

  • targetcli openSUSE Tumbleweed 2.1.54-1.2
  • targetcli-fb openSUSE Leap 15.2 2.1.52-lp152.2.3.1
  • targetcli-fb openSUSE Leap 15.1 2.1.49-lp151.2.10.1

opensuse advisories openSUSE-SU-2024:11423-1openSUSE-SU-2020:1144-1openSUSE-SU-2020:1141-1

  • targetcli Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 2.1.53-r0

alpine advisories ALPINE-CVE-2020-13867

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2020-13867 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-13867 updated cvss 5.5

targetcli: weak permissions for /etc/target and backup files

  • Red Hat Ceph Storage 2 targetcli
    affected: workaround, no fix planned “$ chmod -R og-rwx /etc/target Future backup files will still be created with incorrect permissions, but attackers will not be able to access the target directory.”
  • Red Hat Ceph Storage 3 targetcli
    affected: workaround, no fix available “$ chmod -R og-rwx /etc/target Future backup files will still be created with incorrect permissions, but attackers will not be able to access the target directory.”
  • Red Hat Enterprise Linux AppStream (v. 8) targetcli 2.1.53-1.el8
    fixed: vendor fix “$ chmod -R og-rwx /etc/target Future backup files will still be created with incorrect permissions, but attackers will not be able to access the target directory.” RHSA-2020:4697
  • Red Hat Enterprise Linux Client (v. 7) targetcli 2.1.53-1.el7_9 Red Hat Enterprise Linux Server (v. 7) targetcli 2.1.53-1.el7_9 Red Hat Enterprise Linux Workstation (v. 7) targetcli 2.1.53-1.el7_9
    fixed: vendor fix “$ chmod -R og-rwx /etc/target Future backup files will still be created with incorrect permissions, but attackers will not be able to access the target directory.” RHSA-2020:5434

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-276 Incorrect Default Permissions

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.