Ubuntu: Security Advisory (USN-310-1)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.1.12.2006.310.1");
  script_cve_id("CVE-2006-2194");
  script_tag(name:"creation_date", value:"2022-08-26 07:43:23 +0000 (Fri, 26 Aug 2022)");
  script_version("2024-02-02T05:06:09+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");

  script_name("Ubuntu: Security Advisory (USN-310-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 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(5\.10|6\.06\ LTS)");

  script_xref(name:"Advisory-ID", value:"USN-310-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-310-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'ppp' package(s) announced via the USN-310-1 advisory.");

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

  script_tag(name:"insight", value:"Marcus Meissner discovered that the winbind plugin of pppd does not
check the result of the setuid() call. On systems that configure PAM
limits for the maximum number of user processes and enable the winbind
plugin, a local attacker could exploit this to execute the winbind
NTLM authentication helper as root. Depending on the local winbind
configuration, this could potentially lead to privilege escalation.");

  script_tag(name:"affected", value:"'ppp' package(s) on Ubuntu 5.10, Ubuntu 6.06.");

  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 == "UBUNTU5.10") {

  if(!isnull(res = isdpkgvuln(pkg:"ppp", ver:"2.4.3-20050321+2ubuntu1.1", rls:"UBUNTU5.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ppp-dev", ver:"2.4.3-20050321+2ubuntu1.1", rls:"UBUNTU5.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ppp-udeb", ver:"2.4.3-20050321+2ubuntu1.1", rls:"UBUNTU5.10"))) {
    report += res;
  }

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

if(release == "UBUNTU6.06 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"ppp", ver:"2.4.4b1-1ubuntu3.1", rls:"UBUNTU6.06 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ppp-dev", ver:"2.4.4b1-1ubuntu3.1", rls:"UBUNTU6.06 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ppp-udeb", ver:"2.4.4b1-1ubuntu3.1", rls:"UBUNTU6.06 LTS"))) {
    report += res;
  }

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

exit(0);