Ubuntu: Security Advisory (USN-719-1)

# SPDX-FileCopyrightText: 2009 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.64166");
  script_cve_id("CVE-2009-0360", "CVE-2009-0361");
  script_tag(name:"creation_date", value:"2009-06-05 16:04:08 +0000 (Fri, 05 Jun 2009)");
  script_version("2024-02-02T05:06:04+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:04 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:H/Au:N/C:C/I:C/A:C");

  script_name("Ubuntu: Security Advisory (USN-719-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 Greenbone AG");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU(8\.04\ LTS|8\.10)");

  script_xref(name:"Advisory-ID", value:"USN-719-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-719-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'libpam-krb5' package(s) announced via the USN-719-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"It was discovered that pam_krb5 parsed environment variables when run with
setuid applications. A local attacker could exploit this flaw to bypass
authentication checks and gain root privileges. (CVE-2009-0360)

Derek Chan discovered that pam_krb5 incorrectly handled refreshing existing
credentials when used with setuid applications. A local attacker could exploit
this to create or overwrite arbitrary files, and possibly gain root privileges.
(CVE-2009-0361)");

  script_tag(name:"affected", value:"'libpam-krb5' package(s) on Ubuntu 8.04, Ubuntu 8.10.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "UBUNTU8.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"libpam-krb5", ver:"3.10-1ubuntu0.8.04.1", rls:"UBUNTU8.04 LTS"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "UBUNTU8.10") {

  if(!isnull(res = isdpkgvuln(pkg:"libpam-krb5", ver:"3.10-1ubuntu0.8.10.1", rls:"UBUNTU8.10"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);