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    CVE-2011-4122

    Directory traversal vulnerability in openpam_configure.c in OpenPAM before r478 on FreeBSD 8.1 allows local users to load arbitrary DSOs and gain privileges via a .. (dot dot) in the service_name argument to the pam_start function, as demonstrated by a .. in the -c option to kcheckpass.

    Published:Nov 17, 2011
    Last Modified:Apr 11, 2025
    EPS:Nov 17, 2011
    EPSS Score:0.00575
    CVSS Score:6.9

    Affected Products

    Vendor
    Freebsd
    Product
    Freebsd

    Exploits

    http://c-skills.blogspot.com/2011/11/openpam-trickery.htmlhttp://c-skills.blogspot.com/2011/11/openpam-trickery.htmlhttps://www.exploit-db.com/exploits/36296

    Related CVEs

    CVE-2026-58094 (CVSS 7.8) — The FIOSSHMLPGCNF ioctl(2) operation configures the page size for a largepage shared memory object. This is i…
    CVE-2026-58093 (CVSS 7) — The TIOCSCTTY ioctl handler drops the tty lock in order to acquire the process tree lock. After reacquiring t…
    CVE-2026-58097 (CVSS 7.8) — mp_SetEnddisc() copied a user-supplied PSN endpoint value without length validation, allowing a buffer overflo…
    CVE-2026-58096 (CVSS 8.8) — LcpDecodeConfig() did not validate the length of received endpoint discriminator options against the minimum r…
    CVE-2026-58095 (CVSS 8.8) — mp_Enddisc() used incorrect length calculations when formatting endpoint discriminator addresses for display, …
    CVE-2026-58092 (CVSS 8.1) — In FreeBSD 15.0, the kernel structure used to represent user credentials changed: previously the primary group…
    CVE-2026-58091 (CVSS 7.8) — The implementation of this ioctl attempts to acquire locks on all channels in a sync group. If locking a chan…
    CVE-2026-58090 (CVSS 7.8) — The SOCK_STREAM receive path in the unix socket implementation failed to fully detach control messages from th…
    CVE-2026-58089 (CVSS 7.8) — When a process calls execve(2) to execute a setuid or setgid image, hwpmc(4) is supposed to detach PMCs owned …
    CVE-2026-58088 (CVSS 7.4) — The ELF core dump code counted the number of dumpable VM map entries, allocated a buffer for the corresponding…

    References

    http://c-skills.blogspot.com/2011/11/openpam-trickery.html
    http://openwall.com/lists/oss-security/2011/12/07/3
    http://openwall.com/lists/oss-security/2011/12/08/9
    http://osvdb.org/76945
    http://secunia.com/advisories/46756
    http://secunia.com/advisories/46804
    http://stealth.openwall.net/xSports/pamslam
    http://trac.des.no/openpam/changeset/478/trunk/lib/openpam_configure.c
    https://exchange.xforce.ibmcloud.com/vulnerabilities/71205
    http://c-skills.blogspot.com/2011/11/openpam-trickery.html
    http://openwall.com/lists/oss-security/2011/12/07/3
    http://openwall.com/lists/oss-security/2011/12/08/9
    http://osvdb.org/76945
    http://secunia.com/advisories/46756
    http://secunia.com/advisories/46804
    http://stealth.openwall.net/xSports/pamslam
    http://trac.des.no/openpam/changeset/478/trunk/lib/openpam_configure.c
    https://exchange.xforce.ibmcloud.com/vulnerabilities/71205

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High