CVE-2013-7383
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 · uneditedx2gocleansessions in X2Go Server before 4.0.0.8 and 4.0.1.x before 4.0.1.10 allows remote authenticated users to gain privileges via unspecified vectors, possibly related to backticks.
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 confidenceThe x2gocleansessions script in X2Go Server versions before 4.0.0.8 and 4.0.1.x before 4.0.1.10 contains a command injection vulnerability, likely via unsanitized input executed through backticks in shell commands. This allows remote authenticated users to execute arbitrary commands with elevated privileges.
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<= 4.0.0.7= 4.0.0.0= 4.0.0.1= 4.0.0.2= 4.0.0.3= 4.0.0.4= 4.0.0.6= 4.0.1.0= 4.0.1.1= 4.0.1.2= 4.0.1.3= 4.0.1.4CVSS 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
- Network
- Complexity
- Low
- Authentication
- Single
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:S/C:C/I:C/A:C
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 checksWork through these to decide whether this CVE applies to you.
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Determine installed X2Go Server versionRun 'dpkg -l x2goserver' or 'rpm -q x2goserver' to retrieve the installed package version, or run 'x2gocleansessions --version' if availableAffected if Version is 4.0.0.7 or earlier, or falls between 4.0.1.0 and 4.0.1.9 inclusive
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Locate the x2gocleansessions scriptSearch for the script using 'find / -name x2gocleansessions 2>/dev/null' or check common paths like /usr/bin/x2gocleansessionsAffected if The script exists on the system and is part of a vulnerable X2Go Server installation
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Verify script content for command injection vectorsExamine the script with 'cat <path_to_x2gocleansessions>' and look for backtick commands or shell execution that process user-supplied input without sanitizationAffected if The script contains unsanitized backtick expressions or system calls that could be manipulated through session input
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Check if X2Go Server service is exposed to untrusted networksReview network configuration and firewall rules to determine if the X2Go Server port (port 22 by default) is accessible from untrusted or public networksAffected if The X2Go service is reachable by remote authenticated users who could inject malicious input
You are affected if X2Go Server version is 4.0.0.7 or earlier, or between 4.0.1.0 and 4.0.1.9, and the x2gocleansessions script with vulnerable code is present and accessible to authenticated users.
Generated from the published advisory. Verify against your own configuration.
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.
dbcve · scopedUpgrade X2Go Server to version 4.0.0.8 or later (4.0.1.x to 4.0.1.10 or later). If immediate patching is not possible, restrict access to trusted authenticated users only and monitor for suspicious session activity.
X2Go Server 4.0.0.8 or later (or 4.0.1.10 or later for 4.0.1.x branch)
- Upgrade X2Go Server to version 4.0.0.8 or later for the 4.0.0.x branch
- Alternatively, upgrade to version 4.0.1.10 or later for the 4.0.1.x branch
- After upgrading, verify the x2gocleansessions binary permissions and configuration
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-7383 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2013-7383 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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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