Sdm TerminalApplication · Jonas Smedegaard

CVE-2008-5372

MEDIUM · 6.9 CVSS v2.0 Published 2008-12-08
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
74/100
Remediation priority · Elevated
No privileges 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
sdm-login in sdm-terminal 0.4.0b allows local users to overwrite arbitrary files via a symlink attack on the /tmp/sdm.autologin.once temporary file.

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 · high confidence

The sdm-login component in sdm-terminal 0.4.0b creates a temporary file at /tmp/sdm.autologin.once without checking for existing symlinks or using secure file creation methods. A local attacker can pre-create a symlink at this path pointing to any target file, causing sdm-login to overwrite that file when it writes to the temporary file.

MitigationReplace insecure temporary file creation with secure methods such as using the O_EXCL flag or mkstemp() to prevent symlink attacks, or verify the file is not a symlink before writing.

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
Sdm TerminalApplication
Affected:= 0.4.0b

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
M
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:M/Au:N/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 checks

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

  1. Check if sdm-terminal is installed and its version
    Run 'dpkg -l sdm-terminal' or 'rpm -q sdm-terminal' depending on your package manager, or look for sdm-terminal in your installed packages
    Affected if The installed version is 0.4.0b exactly
  2. Verify the sdm-login component exists
    Locate the sdm-login binary by running 'which sdm-login' or searching for it in common binary paths like /usr/bin/, /usr/local/bin/
    Affected if The sdm-login binary is present on the system
  3. Inspect the /tmp directory for the vulnerable file path
    Run 'ls -la /tmp/ | grep sdm' to see if any sdm-related files or symlinks exist in /tmp
    Affected if A file or symlink named sdm.autologin.once exists at /tmp/
  4. Check if a symlink exists at the vulnerable path
    Run 'ls -la /tmp/sdm.autologin.once' and check if the first character is 'l' (indicating a symlink)
    Affected if The path /tmp/sdm.autologin.once is a symlink (first character is 'l' in ls -la output)

You are affected if sdm-terminal version 0.4.0b is installed and the sdm-login component runs, creating the temp file at /tmp/sdm.autologin.once, or if a symlink already exists at that path.

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

Replace insecure temporary file creation with secure methods such as using the O_EXCL flag or mkstemp() to prevent symlink attacks, or verify the file is not a symlink before writing.

Fix this in Sdm Terminal Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,040
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Scan for this in your stack

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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-2008-5372 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
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