Debian: Security Advisory (DSA-4837-1)

# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.0.704837");
  script_cve_id("CVE-2020-16846", "CVE-2020-17490", "CVE-2020-25592");
  script_tag(name:"creation_date", value:"2021-01-25 08:20:10 +0000 (Mon, 25 Jan 2021)");
  script_version("2024-08-08T05:05:41+0000");
  script_tag(name:"last_modification", value:"2024-08-08 05:05:41 +0000 (Thu, 08 Aug 2024)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/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:"2020-11-16 15:14:38 +0000 (Mon, 16 Nov 2020)");

  script_name("Debian: Security Advisory (DSA-4837-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 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:"DSA-4837-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2021/DSA-4837-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4837");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/salt");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'salt' package(s) announced via the DSA-4837-1 advisory.");

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

  script_tag(name:"insight", value:"Several vulnerabilities were discovered in salt, a powerful remote execution manager. The flaws could result in authentication bypass and invocation of Salt SSH, creation of certificates with weak file permissions via the TLS execution module or shell injections with the Salt API using the SSH client.

For the stable distribution (buster), these problems have been fixed in version 2018.3.4+dfsg1-6+deb10u2.

We recommend that you upgrade your salt packages.

For the detailed security status of salt please refer to its security tracker page at: [link moved to references]");

  script_tag(name:"affected", value:"'salt' 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");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");

  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:"salt-api", ver:"2018.3.4+dfsg1-6+deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"salt-cloud", ver:"2018.3.4+dfsg1-6+deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"salt-common", ver:"2018.3.4+dfsg1-6+deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"salt-doc", ver:"2018.3.4+dfsg1-6+deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"salt-master", ver:"2018.3.4+dfsg1-6+deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"salt-minion", ver:"2018.3.4+dfsg1-6+deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"salt-proxy", ver:"2018.3.4+dfsg1-6+deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"salt-ssh", ver:"2018.3.4+dfsg1-6+deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"salt-syndic", ver:"2018.3.4+dfsg1-6+deb10u2", rls:"DEB10"))) {
    report += res;
  }

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

exit(0);