FedoraOperating system · Fedoraproject

CVE-2012-5617

HIGH · 7.8 CVSS v3.1 Published 2019-11-25
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
gksu-polkit: permissive PolicyKit policy configuration file allows privilege escalation

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

gksu-polkit ships with a permissive PolicyKit (.policy) configuration file that grants excessive privileges to users, allowing unprivileged local users to execute privileged operations and achieve privilege escalation.

MitigationRestrict the PolicyKit policy file to limit authorization to only trusted users or groups, or remove the overly permissive rules entirely.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
FedoraOperating system
Affected:= 18= 19
Gksu PolkitApplication
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check if gksu-polkit package is installed
    On Fedora systems, run: `rpm -q gksu-polkit` or `dnf list installed gksu-polkit`. On other systems, check for the package via your package manager.
    Affected if The package is installed on Fedora 18 or 19, or on any system with Gksu Polkit installed.
  2. Locate the PolicyKit configuration files for gksu-polkit
    Search for .policy or .conf files related to gksu in standard PolicyKit directories: `/usr/share/polkit-1/actions/`, `/etc/polkit-1/localauthority/`, or by running: `find /usr/share/polkit-1 -name '*gksu*' -o -name '*policy*' 2>/dev/null`
    Affected if PolicyKit configuration files for gksu-polkit exist on the system.
  3. Examine the PolicyKit policy for overly permissive authorization rules
    Open the found .policy or .conf file and look for authorization settings such as `<allow_any>yes</allow_any>`, `<allow_inactive>yes</allow_inactive>`, `<allow_active>yes</allow_active>`, or any configuration that grants privileges to 'any' or 'all' users.
    Affected if The policy contains rules that grant privileged operations to any user (such as allow_any=yes) rather than restricting to specific users or groups.
  4. Verify if unprivileged users can execute the gksu-polkit tool
    As an unprivileged (non-root) test user, attempt to run the gksu-polkit command or any application that uses it for privilege escalation, and observe if it executes successfully without proper authorization.
    Affected if Unprivileged local users can successfully execute privileged operations via gksu-polkit.

A user is affected if gksu-polkit is installed with a PolicyKit configuration that grants excessive privileges (allowing any or all users to perform privileged operations) rather than restricting authorization to specific trusted users or groups.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Restrict the PolicyKit policy file to limit authorization to only trusted users or groups, or remove the overly permissive rules entirely.

Fix this in Fedora Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
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Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2012-5617 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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