Debian: Security Advisory (DLA-3284-1)

# SPDX-FileCopyrightText: 2023 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("1.3.6.1.4.1.25623.1.0.893284");
  script_cve_id("CVE-2020-36658");
  script_tag(name:"creation_date", value:"2023-01-29 02:00:06 +0000 (Sun, 29 Jan 2023)");
  script_version("2024-02-02T05:06:10+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:10 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.6");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:H/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:"2023-02-06 19:38:04 +0000 (Mon, 06 Feb 2023)");

  script_name("Debian: Security Advisory (DLA-3284-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 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=DEB10");

  script_xref(name:"Advisory-ID", value:"DLA-3284-1");
  script_xref(name:"URL", value:"https://www.debian.org/lts/security/2023/DLA-3284-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/libapache-session-ldap-perl");
  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 'libapache-session-ldap-perl' package(s) announced via the DLA-3284-1 advisory.");

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

  script_tag(name:"insight", value:"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used.

This update changes the default behavior to require X.509 validation against the distribution bundle /etc/ssl/certs/ca-certificates.crt. Previous behavior can reverted by setting ldapVerify => 'none' when initializing the Apache::Session::LDAP object. Note: this update is a prerequisite for LemonLDAP::NG's CVE-2020-16093 fix when its session backend is set to Apache::Session::LDAP. For Debian 10 buster, this problem has been fixed in version 0.4-1+deb10u1. We recommend that you upgrade your libapache-session-ldap-perl packages. For the detailed security status of libapache-session-ldap-perl 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:"'libapache-session-ldap-perl' package(s) on Debian 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 == "DEB10") {

  if(!isnull(res = isdpkgvuln(pkg:"libapache-session-ldap-perl", ver:"0.4-1+deb10u1", rls:"DEB10"))) {
    report += res;
  }

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

exit(0);