Mageia: Security Advisory (MGASA-2021-0087)

# 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("1.3.6.1.4.1.25623.1.1.10.2021.0087");
  script_cve_id("CVE-2020-26262");
  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:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-01-19 23:08:18 +0000 (Tue, 19 Jan 2021)");

  script_name("Mageia: Security Advisory (MGASA-2021-0087)");
  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-2021-0087");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2021-0087.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=28068");
  script_xref(name:"URL", value:"https://github.com/coturn/coturn/security/advisories/GHSA-6g6j-r9rf-cm7p");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'coturn' package(s) announced via the MGASA-2021-0087 advisory.");

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

  script_tag(name:"insight", value:"When sending a CONNECT request with the XOR-PEER-ADDRESS value of 0.0.0.0, a
malicious user would be able to relay packets to the loopback interface.
Additionally, when coturn is listening on IPv6, which is default, the loopback
interface can also be reached by making use of either [::1] or [::] as the peer
address (CVE-2020-26262).

If updating is not possible, the setting --denied-peer-ip=0.0.0.0 can mitigate
this issue.

The coturn package has been patched to fix this issue.");

  script_tag(name:"affected", value:"'coturn' 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:"coturn", rpm:"coturn~4.5.2~1.4.mga7", rls:"MAGEIA7"))) {
    report += res;
  }

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

exit(0);