Security readout for executives and security teams
Older nfs-utils rpc-gssd versions can trust reverse DNS during GSSAPI authentication. If an attacker can spoof DNS in the right network position, they may make a protected NFS access decision use the wrong server identity and read files that should be restricted. Exposure is most likely on Linux systems using affected nfs-utils rpc-gssd with NFS GSSAPI/Kerberos authentication and DNS-dependent server identity handling. Systems already on nfs-utils 1.2.8 or vendor-backported fixed packages are less likely exposed. Treat this as a targeted infrastructure-hardening issue, not an internet-wide emergency. Prioritize environments using Kerberos-protected NFS, especially where legacy Linux builds or untrusted networks are present. Mitigation focus: Upgrade nfs-utils to 1.2.8 or a vendor-backported fixed package.; Review Red Hat and openSUSE guidance for distribution-specific fixed builds.; Reduce reliance on spoofable DNS for NFS server identity decisions..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2013-1923 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.redhat.com/show_bug.cgi?id=948072CVE reference · x_refsource_CONFIRM
- nfsutils-cve20131923-spoofing(85331)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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