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SolarisOperating system · Sun

CVE-1999-0795

HIGH · 7.5 CVSS v2.0 Published 1998-03-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable 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
The NIS+ rpc.nisd server allows remote attackers to execute certain RPC calls without authentication to obtain system information, disable logging, or modify caches.

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

The NIS+ rpc.nisd server contains an authentication bypass vulnerability where certain RPC calls can be executed without proper authentication. This allows remote attackers to obtain sensitive system information, disable logging functionality, or manipulate cache data.

MitigationApply available patches for the rpc.nisd daemon; if NIS+ is no longer required, migrate to LDAP or other modern authentication services as NIS+ is deprecated.

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
SolarisOperating system
Affected:all versions
SunosOperating system
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
Network
Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

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. Identify the operating system
    Run 'uname -a' or check /etc/release to determine if the system is Sun Solaris or SunOS
    Affected if The system is running Sun Solaris or SunOS (any version)
  2. Check if NIS+ is installed
    Look for NIS+ binaries and configuration: verify the existence of /usr/sbin/rpc.nisd or check /etc/nsswitch.conf for 'nisplus' entries
    Affected if NIS+ binaries or nsswitch.conf containing nisplus are present on the system
  3. Determine if rpc.nisd daemon is running
    Run 'rpcinfo -p' and search for program number 100300 (rpc.nisd), or run 'ps -ef | grep rpc.nisd'
    Affected if The rpc.nisd daemon is actively running and registered as an RPC service

The environment is affected if it is Sun Solaris or SunOS with NIS+ installed and the rpc.nisd daemon running, as this allows unauthenticated RPC calls.

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

Apply available patches for the rpc.nisd daemon; if NIS+ is no longer required, migrate to LDAP or other modern authentication services as NIS+ is deprecated.

Fix this in Solaris Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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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-1999-0795 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
  • No spam, self-promotion, credentials, or personal data