Debian: Security Advisory (DLA-2599-1)

# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.0.892599");
  script_cve_id("CVE-2021-28963");
  script_tag(name:"creation_date", value:"2021-03-19 04:00:07 +0000 (Fri, 19 Mar 2021)");
  script_version("2024-02-02T05:06:07+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-03-26 14:13:08 +0000 (Fri, 26 Mar 2021)");

  script_name("Debian: Security Advisory (DLA-2599-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB9");

  script_xref(name:"Advisory-ID", value:"DLA-2599-1");
  script_xref(name:"URL", value:"https://www.debian.org/lts/security/2021/DLA-2599-1");
  script_xref(name:"URL", value:"https://shibboleth.net/community/advisories/secadv_20210317.txt");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/shibboleth-sp2");
  script_xref(name:"URL", value:"https://wiki.debian.org/LTS");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'shibboleth-sp2' package(s) announced via the DLA-2599-1 advisory.");

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

  script_tag(name:"insight", value:"Toni Huttunen discovered that the Shibboleth service provider's template engine used to render error pages could be abused for phishing attacks.

For additional information please refer to the upstream advisory at [link moved to references]

For Debian 9 stretch, this problem has been fixed in version 2.6.0+dfsg1-4+deb9u2.

We recommend that you upgrade your shibboleth-sp2 packages.

For the detailed security status of shibboleth-sp2 please refer to its security tracker page at: [link moved to references]

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]");

  script_tag(name:"affected", value:"'shibboleth-sp2' package(s) on Debian 9.");

  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 == "DEB9") {

  if(!isnull(res = isdpkgvuln(pkg:"libapache2-mod-shib2", ver:"2.6.0+dfsg1-4+deb9u2", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libshibsp-dev", ver:"2.6.0+dfsg1-4+deb9u2", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libshibsp-doc", ver:"2.6.0+dfsg1-4+deb9u2", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libshibsp-plugins", ver:"2.6.0+dfsg1-4+deb9u2", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libshibsp7", ver:"2.6.0+dfsg1-4+deb9u2", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"shibboleth-sp2-common", ver:"2.6.0+dfsg1-4+deb9u2", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"shibboleth-sp2-utils", ver:"2.6.0+dfsg1-4+deb9u2", rls:"DEB9"))) {
    report += res;
  }

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

exit(0);