The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux kernel 2.6.29.3 and earlier, when atomic_open is available, does not check execute (aka EXEC or MAY_EXEC) permission bits, which allows local users to bypass permissions and execute files, as demonstrated by files on an NFSv4 fileserver.
Published 2009-05-14 17:30:01
Updated 2020-08-21 18:45:28
Source MITRE
View at NVD,   CVE.org

Products affected by CVE-2009-1630

Threat overview for CVE-2009-1630

Top countries where our scanners detected CVE-2009-1630
Top open port discovered on systems with this issue 53
IPs affected by CVE-2009-1630 1,532
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2009-1630!
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Exploit prediction scoring system (EPSS) score for CVE-2009-1630

0.06%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 26 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-1630

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.4
MEDIUM AV:L/AC:M/Au:N/C:P/I:P/A:P
3.4
6.4
NIST

CWE ids for CVE-2009-1630

  • Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2009-1630

  • Red Hat 2009-09-10
    This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, and 3. It was addressed in Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2009-1132.html , https://rhn.redhat.com/errata/RHSA-2009-1106.html , and https://rhn.redhat.com/errata/RHSA-2009-1157.html .

References for CVE-2009-1630

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