Debian: Security Advisory (DLA-2618-1)

# 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("1.3.6.1.4.1.25623.1.0.892618");
  script_cve_id("CVE-2018-13982", "CVE-2018-16831", "CVE-2021-26119", "CVE-2021-26120");
  script_tag(name:"creation_date", value:"2021-04-06 03:00:10 +0000 (Tue, 06 Apr 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:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-02-26 12:56:29 +0000 (Fri, 26 Feb 2021)");

  script_name("Debian: Security Advisory (DLA-2618-1)");
  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-2618-1");
  script_xref(name:"URL", value:"https://www.debian.org/lts/security/2021/DLA-2618-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/smarty3");
  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 'smarty3' package(s) announced via the DLA-2618-1 advisory.");

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

  script_tag(name:"insight", value:"Several vulnerabilities were discovered in smarty3, a template engine for PHP.

CVE-2018-13982

path traversal vulnerability due to insufficient sanitization of code in Smarty templates. This allows attackers controlling the Smarty template to bypass the trusted directory security restriction and read arbitrary files.

CVE-2021-26119

allows a Sandbox Escape because $smarty.template_object can be accessed in sandbox mode.

CVE-2021-26120

allows code injection vulnerability via an unexpected function name after a {function name= substring.

For Debian 9 stretch, these problems have been fixed in version 3.1.31+20161214.1.c7d42e4+selfpack1-2+deb9u2.

We recommend that you upgrade your smarty3 packages.

For the detailed security status of smarty3 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:"'smarty3' 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:"smarty3", ver:"3.1.31+20161214.1.c7d42e4+selfpack1-2+deb9u2", rls:"DEB9"))) {
    report += res;
  }

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

exit(0);