Debian: Security Advisory (DSA-4637-1)

# SPDX-FileCopyrightText: 2020 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("1.3.6.1.4.1.25623.1.0.704637");
  script_cve_id("CVE-2020-9355");
  script_tag(name:"creation_date", value:"2020-03-10 04:00:08 +0000 (Tue, 10 Mar 2020)");
  script_version("2024-02-02T05:06:07+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 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:"2020-02-25 21:04:02 +0000 (Tue, 25 Feb 2020)");

  script_name("Debian: Security Advisory (DSA-4637-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 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=DEB(10|9)");

  script_xref(name:"Advisory-ID", value:"DSA-4637-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2020/DSA-4637-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4637");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/network-manager-ssh");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'network-manager-ssh' package(s) announced via the DSA-4637-1 advisory.");

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

  script_tag(name:"insight", value:"Kobus van Schoor discovered that network-manager-ssh, a plugin to provide VPN integration for SSH in NetworkManager, is prone to a privilege escalation vulnerability. A local user with privileges to modify a connection can take advantage of this flaw to execute arbitrary commands as root.

This update drops support to pass extra SSH options to the ssh invocation.

For the oldstable distribution (stretch), this problem has been fixed in version 1.2.1-1+deb9u1.

For the stable distribution (buster), this problem has been fixed in version 1.2.10-1+deb10u1.

We recommend that you upgrade your network-manager-ssh packages.

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

  script_tag(name:"affected", value:"'network-manager-ssh' package(s) on Debian 9, 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");

  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:"network-manager-ssh", ver:"1.2.10-1+deb10u1", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"network-manager-ssh-gnome", ver:"1.2.10-1+deb10u1", rls:"DEB10"))) {
    report += res;
  }

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

if(release == "DEB9") {

  if(!isnull(res = isdpkgvuln(pkg:"network-manager-ssh", ver:"1.2.1-1+deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"network-manager-ssh-gnome", ver:"1.2.1-1+deb9u1", rls:"DEB9"))) {
    report += res;
  }

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

exit(0);