CVE-2020-13867: Open-iSCSI targetcli-fb through 2.1.52 has weak permissions for /etc/target (and for the backup directory and

Q: How do I fix CVE-2020-13867?

targetcli-fb: upgrade to newer than 2.1.52; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2020-13867 being exploited?

CVE-2020-13867 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-13867 affect?

CVE-2020-13867 affects targetcli-fb, fedora. Severity is medium (CVSS 5.5). Open-iSCSI targetcli-fb through 2.1.52 has weak permissions for /etc/target (and for the backup directory and backup files).

Q: How urgent is CVE-2020-13867?

Priority 26/100. No elevated risk signals yet.

Routine

MEDIUM 5.5UPGRADEMITIGATE

CVE-2020-13867 is a medium-severity flaw (CVSS 5.5) affecting targetcli-fb, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-276
Published	2020-06-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fedoraproject · targetcli-fb project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-06-05 18:15 UTCPublished CVE record published
2026-06-17 02:53 UTCUpdated Record last modified

targetcli-fb project targetcli-fb UPGRADE

Affected: <= 2.1.52

Fixed in: newer than 2.1.52

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy targetcli-fb || rpm -q targetcli-fb || targetcli-fb --version

2. UPGRADE to newer than 2.1.52 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade targetcli-fb

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade targetcli-fb

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

fedoraproject fedora MITIGATE

Affected: 32

Fixed in: no fixed release known

Safe to downgrade to: a release before 32

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-13867?

targetcli-fb: upgrade to newer than 2.1.52; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-13867 being exploited?

CVE-2020-13867 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-13867 affect?

CVE-2020-13867 affects targetcli-fb, fedora. Severity is medium (CVSS 5.5). Open-iSCSI targetcli-fb through 2.1.52 has weak permissions for /etc/target (and for the backup directory and backup files).

How urgent is CVE-2020-13867?

Priority 26/100. No elevated risk signals yet.

Related CVEs

CVE-2020-10699 HIGH 7.8 DOWNGRADE A flaw was found in Linux, in targetcli-fb versions 2.1.50 and 2.1.51 where the socket used by targetclid was

References

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