Mageia: Security Advisory (MGASA-2021-0464)

# 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("1.3.6.1.4.1.25623.1.1.10.2021.0464");
  script_cve_id("CVE-2021-32749");
  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:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  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:"2021-07-27 16:39:52 +0000 (Tue, 27 Jul 2021)");

  script_name("Mageia: Security Advisory (MGASA-2021-0464)");
  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-2021-0464");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2021-0464.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=29469");
  script_xref(name:"URL", value:"https://lists.opensuse.org/archives/list/[email protected]/thread/RYBYCPVAMLJBPZO42ZMSVOQTCNN3YNQS/");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/show_bug.cgi?id=1188610");
  script_xref(name:"URL", value:"https://github.com/fail2ban/fail2ban/security/advisories/GHSA-m985-3f3v-cwmm");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'fail2ban' package(s) announced via the MGASA-2021-0464 advisory.");

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

  script_tag(name:"insight", value:"fail2ban is a daemon to ban hosts that cause multiple authentication errors.
In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through
0.11.2, there is a vulnerability that leads to possible remote code
execution in the mailing action mail-whois. Command `mail` from mailutils
package used in mail actions like `mail-whois` can execute command if
unescaped sequences (`\n~`) are available in 'foreign' input (for
instance in whois output). To exploit the vulnerability, an attacker would
need to insert malicious characters into the response sent by the whois
server, either via a MITM attack or by taking over a whois server.
(CVE-2021-32749)");

  script_tag(name:"affected", value:"'fail2ban' 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:"fail2ban", rpm:"fail2ban~0.11.2~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

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

exit(0);