Debian: Security Advisory (DSA-2903-1)

# SPDX-FileCopyrightText: 2014 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("1.3.6.1.4.1.25623.1.0.702903");
  script_cve_id("CVE-2014-2338");
  script_tag(name:"creation_date", value:"2014-04-13 22:00:00 +0000 (Sun, 13 Apr 2014)");
  script_version("2024-02-02T05:06:04+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:04 +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_name("Debian: Security Advisory (DSA-2903-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2014 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(6|7)");

  script_xref(name:"Advisory-ID", value:"DSA-2903-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2014/DSA-2903-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-2903");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'strongswan' package(s) announced via the DSA-2903-1 advisory.");

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

  script_tag(name:"insight", value:"An authentication bypass vulnerability was found in charon, the daemon handling IKEv2 in strongSwan, an IKE/IPsec suite. The state machine handling the security association (IKE_SA) handled some state transitions incorrectly.

An attacker can trigger the vulnerability by rekeying an unestablished IKE_SA during the initiation itself. This will trick the IKE_SA state to established without the need to provide any valid credential.

Vulnerable setups include those actively initiating IKEv2 IKE_SA (like 'clients' or 'roadwarriors') but also during re-authentication (which can be initiated by the responder). Installations using IKEv1 (pluto daemon in strongSwan 4 and earlier, and IKEv1 code in charon 5.x) is not affected.

For the oldstable distribution (squeeze), this problem has been fixed in version 4.4.1-5.5.

For the stable distribution (wheezy), this problem has been fixed in version 4.5.2-1.5+deb7u3.

For the unstable distribution (sid), this problem has been fixed in version 5.1.2-4.

We recommend that you upgrade your strongswan packages.");

  script_tag(name:"affected", value:"'strongswan' package(s) on Debian 6, Debian 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-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "DEB6") {

  if(!isnull(res = isdpkgvuln(pkg:"libstrongswan", ver:"4.4.1-5.5", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan", ver:"4.4.1-5.5", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan-dbg", ver:"4.4.1-5.5", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan-ikev1", ver:"4.4.1-5.5", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan-ikev2", ver:"4.4.1-5.5", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan-nm", ver:"4.4.1-5.5", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan-starter", ver:"4.4.1-5.5", rls:"DEB6"))) {
    report += res;
  }

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

if(release == "DEB7") {

  if(!isnull(res = isdpkgvuln(pkg:"libstrongswan", ver:"4.5.2-1.5+deb7u3", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan", ver:"4.5.2-1.5+deb7u3", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan-dbg", ver:"4.5.2-1.5+deb7u3", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan-ikev1", ver:"4.5.2-1.5+deb7u3", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan-ikev2", ver:"4.5.2-1.5+deb7u3", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan-nm", ver:"4.5.2-1.5+deb7u3", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"strongswan-starter", ver:"4.5.2-1.5+deb7u3", rls:"DEB7"))) {
    report += res;
  }

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

exit(0);