Ubuntu: Security Advisory (USN-2034-1)

# SPDX-FileCopyrightText: 2013 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("1.3.6.1.4.1.25623.1.0.841635");
  script_cve_id("CVE-2013-4477");
  script_tag(name:"creation_date", value:"2013-11-26 05:54:38 +0000 (Tue, 26 Nov 2013)");
  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:"3.3");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:P/I:P/A:N");

  script_name("Ubuntu: Security Advisory (USN-2034-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2013 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(12\.10|13\.04|13\.10)");

  script_xref(name:"Advisory-ID", value:"USN-2034-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-2034-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'keystone' package(s) announced via the USN-2034-1 advisory.");

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

  script_tag(name:"insight", value:"Brant Knudson discovered a logic error in the LDAP backend in Keystone
where removing a role on a tenant for a user who does not have that role
would instead add the role to the user. An authenticated user could use
this to gain privileges. Ubuntu is not configured to use the LDAP Keystone
backend by default.");

  script_tag(name:"affected", value:"'keystone' package(s) on Ubuntu 12.10, Ubuntu 13.04, Ubuntu 13.10.");

  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 == "UBUNTU12.10") {

  if(!isnull(res = isdpkgvuln(pkg:"python-keystone", ver:"2012.2.4-0ubuntu3.3", rls:"UBUNTU12.10"))) {
    report += res;
  }

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

if(release == "UBUNTU13.04") {

  if(!isnull(res = isdpkgvuln(pkg:"python-keystone", ver:"1:2013.1.4-0ubuntu1.1", rls:"UBUNTU13.04"))) {
    report += res;
  }

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

if(release == "UBUNTU13.10") {

  if(!isnull(res = isdpkgvuln(pkg:"python-keystone", ver:"1:2013.2-0ubuntu1.1", rls:"UBUNTU13.10"))) {
    report += res;
  }

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

exit(0);