Debian DLA-2298-1 : libapache2-mod-auth-openidc security update

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2298-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(139098);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/27");

  script_cve_id("CVE-2019-1010247", "CVE-2019-14857", "CVE-2019-20479");

  script_name(english:"Debian DLA-2298-1 : libapache2-mod-auth-openidc security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"Several issues have been found in libapache2-mod-auth-openidc, the
OpenID Connect authentication module for the Apache HTTP server.

CVE-2019-14857

Insufficient validation of URLs leads to an Open Redirect
vulnerability. An attacker may trick a victim into providing
credentials for an OpenID provider by forwarding the request to an
illegitimate website.

CVE-2019-20479

Due to insufficient validatation of URLs an Open Redirect
vulnerability for URLs beginning with a slash and backslash could be
abused.

CVE-2019-1010247

The OIDCRedirectURI page contains generated JavaScript code that uses
a poll parameter as a string variable, thus might contain additional
JavaScript code. This might result in Criss-Site Scripting (XSS).

For Debian 9 stretch, these problems have been fixed in version
2.1.6-1+deb9u1.

We recommend that you upgrade your libapache2-mod-auth-openidc
packages.

For the detailed security status of libapache2-mod-auth-openidc please
refer to

its security tracker page at:
https://security-tracker.debian.org/tracker/libapache2-mod-auth-openid
c

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2020/07/msg00028.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/libapache2-mod-auth-openidc");
  # https://security-tracker.debian.org/tracker/source-package/libapache2-mod-auth-openidc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0371ebc9");
  script_set_attribute(attribute:"solution", value:
"Upgrade the affected libapache2-mod-auth-openidc package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-20479");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libapache2-mod-auth-openidc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"9.0", prefix:"libapache2-mod-auth-openidc", reference:"2.1.6-1+deb9u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");