Mageia: Security Advisory (MGASA-2021-0377)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.1.10.2021.0377");
  script_cve_id("CVE-2021-28363", "CVE-2021-33503");
  script_tag(name:"creation_date", value:"2022-01-28 10:58:44 +0000 (Fri, 28 Jan 2022)");
  script_version("2024-02-02T05:06:09+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.4");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/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:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-07-02 17:58:11 +0000 (Fri, 02 Jul 2021)");

  script_name("Mageia: Security Advisory (MGASA-2021-0377)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Mageia Linux Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/mageia_linux", "ssh/login/release", re:"ssh/login/release=MAGEIA8");

  script_xref(name:"Advisory-ID", value:"MGASA-2021-0377");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2021-0377.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=29041");
  script_xref(name:"URL", value:"https://github.com/urllib3/urllib3/releases/tag/1.26.3");
  script_xref(name:"URL", value:"https://github.com/urllib3/urllib3/releases/tag/1.26.4");
  script_xref(name:"URL", value:"https://github.com/urllib3/urllib3/releases/tag/1.26.5");
  script_xref(name:"URL", value:"https://lists.opensuse.org/archives/list/[email protected]/thread/NYARUF6IH56FOIKBV7PTO7AXODL5GKNT/");
  script_xref(name:"URL", value:"https://lists.fedoraproject.org/archives/list/[email protected]/thread/FMUGWEAUYGGHTPPXT6YBD53WYXQGVV73/");
  script_xref(name:"URL", value:"https://lists.fedoraproject.org/archives/list/[email protected]/thread/JWEE334W43EIJUKSMQSEH6ML7VU57K5B/");
  script_xref(name:"URL", value:"https://lists.fedoraproject.org/archives/list/[email protected]/thread/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'python-urllib3' package(s) announced via the MGASA-2021-0377 advisory.");

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

  script_tag(name:"insight", value:"The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate
validation in some cases involving HTTPS to HTTPS proxies. The initial
connection to the HTTPS proxy (if an SSLContext isn't given via proxy_config)
doesn't verify the hostname of the certificate. This means certificates for
different servers that still validate properly with the default urllib3
SSLContext will be silently accepted (CVE-2021-28363).

An issue was discovered in urllib3 before 1.26.5. When provided with a URL
containing many @ characters in the authority component, the authority regular
expression exhibits catastrophic backtracking, causing a denial of service if
a URL were passed as a parameter or redirected to via an HTTP redirect
(CVE-2021-33503).");

  script_tag(name:"affected", value:"'python-urllib3' package(s) on Mageia 8.");

  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-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "MAGEIA8") {

  if(!isnull(res = isrpmvuln(pkg:"python-urllib3", rpm:"python-urllib3~1.26.5~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python3-urllib3", rpm:"python3-urllib3~1.26.5~1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

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

exit(0);