Mageia: Security Advisory (MGASA-2021-0056)

# 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("1.3.6.1.4.1.25623.1.1.10.2021.0056");
  script_cve_id("CVE-2021-3156");
  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:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-02-03 19:42:10 +0000 (Wed, 03 Feb 2021)");

  script_name("Mageia: Security Advisory (MGASA-2021-0056)");
  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=MAGEIA7");

  script_xref(name:"Advisory-ID", value:"MGASA-2021-0056");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2021-0056.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=28230");
  script_xref(name:"URL", value:"https://www.sudo.ws/alerts/unescape_overflow.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'sudo' package(s) announced via the MGASA-2021-0056 advisory.");

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

  script_tag(name:"insight", value:"A serious heap-based buffer overflow has been discovered in sudo that is
exploitable by any local user. It has been given the name Baron Samedit
by its discoverer. The bug can be leveraged to elevate privileges to
root, even if the user is not listed in the sudoers file. User
authentication is not required to exploit the bug (CVE-2021-3156).");

  script_tag(name:"affected", value:"'sudo' package(s) on Mageia 7.");

  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 == "MAGEIA7") {

  if(!isnull(res = isrpmvuln(pkg:"sudo", rpm:"sudo~1.9.5p2~1.mga7", rls:"MAGEIA7"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-devel", rpm:"sudo-devel~1.9.5p2~1.mga7", rls:"MAGEIA7"))) {
    report += res;
  }

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

exit(0);