Debian: Security Advisory (DSA-4216-1)

# SPDX-FileCopyrightText: 2018 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("1.3.6.1.4.1.25623.1.0.704216");
  script_cve_id("CVE-2018-10847");
  script_tag(name:"creation_date", value:"2018-06-01 22:00:00 +0000 (Fri, 01 Jun 2018)");
  script_version("2024-02-02T05:06:06+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:06 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/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:"2018-10-17 13:02:54 +0000 (Wed, 17 Oct 2018)");

  script_name("Debian: Security Advisory (DSA-4216-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 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(8|9)");

  script_xref(name:"Advisory-ID", value:"DSA-4216-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2018/DSA-4216-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4216");
  script_xref(name:"URL", value:"https://prosody.im/security/advisory_20180531/");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/prosody");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'prosody' package(s) announced via the DSA-4216-1 advisory.");

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

  script_tag(name:"insight", value:"It was discovered that Prosody, a lightweight Jabber/XMPP server, does not properly validate client-provided parameters during XMPP stream restarts, allowing authenticated users to override the realm associated with their session, potentially bypassing security policies and allowing impersonation.

Details can be found in the upstream advisory at [link moved to references]

For the oldstable distribution (jessie), this problem has been fixed in version 0.9.7-2+deb8u4.

For the stable distribution (stretch), this problem has been fixed in version 0.9.12-2+deb9u2.

We recommend that you upgrade your prosody packages.

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

  script_tag(name:"affected", value:"'prosody' package(s) on Debian 8, Debian 9.");

  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 == "DEB8") {

  if(!isnull(res = isdpkgvuln(pkg:"prosody", ver:"0.9.7-2+deb8u4", rls:"DEB8"))) {
    report += res;
  }

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

if(release == "DEB9") {

  if(!isnull(res = isdpkgvuln(pkg:"prosody", ver:"0.9.12-2+deb9u2", rls:"DEB9"))) {
    report += res;
  }

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

exit(0);