CVE-2018-9302: SSRF (Server Side Request Forgery) in /assets/lib/fuc.js.php in Cockpit 0.4.4 through 0.5.5 allows remote atta

Q: How do I fix CVE-2018-9302?

cockpit: upgrade to newer than 0.5.5. Exact commands for each OS are on this page.

Q: Is CVE-2018-9302 being exploited?

CVE-2018-9302 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-2018-9302 affect?

CVE-2018-9302 affects cockpit. Severity is critical (CVSS 9.1). SSRF (Server Side Request Forgery) in /assets/lib/fuc.js.php in Cockpit 0.4.4 through 0.5.5 allows remote attackers to read arbitrary files or send TCP traffic to intranet hosts via the url parameter. NOTE: this vulnerability exists because

Q: How urgent is CVE-2018-9302?

Priority 66/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.1REMOTEUPGRADE

CVE-2018-9302 is a critical-severity flaw (CVSS 9.1) affecting cockpit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SSRF (Server Side Request Forgery) in /assets/lib/fuc.js.php in Cockpit 0.4.4 through 0.5.5 allows remote attackers to read arbitrary files or send TCP traffic to intranet hosts via the url parameter. NOTE: this vulnerability exists because of an incomplete fix for CVE-2017-14611, which was about version 0.13.0, which (surprisingly) is an earlier version than 0.4.4.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	8.4% (top 5%)
CISA exploited list	No
Weakness	CWE-918
Published	2018-05-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: getcockpit

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

Am I affected?

Timeline

2018-05-02 15:29 UTCPublished CVE record published
2026-06-17 02:06 UTCUpdated Record last modified

getcockpit cockpit UPGRADE

Affected: >= 0.4.4 and <= 0.5.5

Fixed in: newer than 0.5.5

Safe to downgrade to: a release before 0.4.4

1. Check installed version

apt-cache policy cockpit || rpm -q cockpit || cockpit --version

2. UPGRADE to newer than 0.5.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cockpit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cockpit

Note

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

3. If no update is available yet, DOWNGRADE to a release before 0.4.4 (Debian / Ubuntu)

apt-cache madison cockpit sudo apt install cockpit=<VERSION_BEFORE_0.4.4> sudo apt-mark hold cockpit

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list cockpit sudo dnf downgrade cockpit-<VERSION_BEFORE_0.4.4> sudo dnf versionlock add cockpit

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Cockpit CMS 0.4.4 < 0.5.5 - Server-Side Request Forgery

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-2018-9302?

cockpit: upgrade to newer than 0.5.5. Exact commands for each OS are on this page.

Is CVE-2018-9302 being exploited?

CVE-2018-9302 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-2018-9302 affect?

CVE-2018-9302 affects cockpit. Severity is critical (CVSS 9.1). SSRF (Server Side Request Forgery) in /assets/lib/fuc.js.php in Cockpit 0.4.4 through 0.5.5 allows remote attackers to read arbitrary files or send TCP traffic to intranet hosts via the url parameter. NOTE: this vulnerability exists because

How urgent is CVE-2018-9302?

Priority 66/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

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References

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