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Fencer Intel
high 7.8

CVE-2020-10699 json

A flaw was found in Linux, in targetcli-fb versions 2.1.50 and 2.1.51 where the socket used by targetclid was world-writable.

published 6y ago modified 4mo ago also EUVD-2020-3130

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

A flaw was found in Linux, in targetcli-fb versions 2.1.50 and 2.1.51 where the socket used by targetclid was world-writable. If a system enables the targetclid socket, a local attacker can use this flaw to modify the iSCSI configuration and escalate their privileges to root.

Patch / fix

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

ubuntu advisories UBUNTU-CVE-2020-10699

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 8 2.1.51-4.el8_2

red hat advisories RHSA-2020:1933

  • targetcli openSUSE Tumbleweed 2.1.54-1.2

opensuse advisories openSUSE-SU-2024:11423-1

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

alpine advisories ALPINE-CVE-2020-10699

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

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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-2020-10699 updated cvss 7.8

targetcli: world writable /var/run/targetclid.sock allows unprivileged user to execute commands

  • Red Hat Enterprise Linux AppStream (v. 8) targetcli 2.1.51-4.el8_2
    fixed: vendor fix “- Do not enable targetclid, this would prevent the socket to be created - Manually change the socket's permission every time it is being created : $ sudo chmod 0600 /var/run/targetclid.sock” RHSA-2020:1933
  • Red Hat Ceph Storage 2 targetcli Red Hat Ceph Storage 3 targetcli Red Hat Enterprise Linux 7 targetcli
    not affected: vulnerable code not present

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

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • Datera, Inc targetcli

Classification

Weakness
  • CWE-732 Incorrect Permission Assignment for Critical Resource

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.