{
    "id": "CVE-2011-4122",
    "published": "2011-11-17 19:55:01",
    "last_modified": "2026-06-16 23:34:28",
    "cvss_score": "6.9",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
    "cwe": "CWE-22",
    "description": "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.",
    "epss_score": "0.00885",
    "epss_percentile": "0.58166",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-13 18:17:10",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "freebsd",
            "product": "freebsd"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "36296",
            "title": "OpenPAM - 'pam_start()' Local Privilege Escalation",
            "date": "2011-11-09",
            "url": "https://www.exploit-db.com/exploits/36296"
        }
    ],
    "refs_list": [
        "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"
    ]
}