SUSE: Security Advisory (SUSE-SU-2015:1695-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2015.1695.1");
  script_cve_id("CVE-2015-4000", "CVE-2015-5352", "CVE-2015-5600", "CVE-2015-6563", "CVE-2015-6564");
  script_tag(name:"creation_date", value:"2021-06-09 14:58:10 +0000 (Wed, 09 Jun 2021)");
  script_version("2024-02-02T14:37:48+0000");
  script_tag(name:"last_modification", value:"2024-02-02 14:37:48 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"8.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2015-08-03 12:07:47 +0000 (Mon, 03 Aug 2015)");

  script_name("SUSE: Security Advisory (SUSE-SU-2015:1695-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/suse_sles", "ssh/login/rpms", re:"ssh/login/release=(SLES11\.0SP4)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2015:1695-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2015/suse-su-20151695-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'openssh' package(s) announced via the SUSE-SU-2015:1695-1 advisory.");

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

  script_tag(name:"insight", value:"OpenSSH was updated to fix several security issues and bugs.
Please note that due to a bug in the previous shipped openssh version,
sshd might not correctly restart. Please verify that the ssh daemon is running after installing this update.
These security issues were fixed:
* CVE-2015-5352: The x11_open_helper function, when ForwardX11Trusted mode
 is not used, lacked a check of the refusal deadline for X connections,
 which made it easier for remote attackers to bypass intended access
 restrictions via a connection outside of the permitted time window.
 (bsc#936695)
* CVE-2015-5600: The kbdint_next_device function in auth2-chall.c in sshd
 did not properly restrict the processing of keyboard-interactive devices
 within a single connection, which made it easier for remote attackers to
 conduct brute-force attacks or cause a denial of service (CPU
 consumption) via a long and duplicative list in the ssh
 -oKbdInteractiveDevices option, as demonstrated by a modified client
 that provides a different password for each pam element on this list.
 (bsc#938746)
* CVE-2015-4000: Removed and disabled weak DH groups to address LOGJAM.
 (bsc#932483)
* Hardening patch to fix sftp RCE. (bsc#903649)
* CVE-2015-6563: The monitor component in sshd accepted extraneous
 username data in MONITOR_REQ_PAM_INIT_CTX requests, which allowed local
 users to conduct impersonation attacks by leveraging any SSH login
 access in conjunction with control of the sshd uid to send a crafted
 MONITOR_REQ_PWNAM request, related to monitor.c and monitor_wrap.c.
* CVE-2015-6564: Use-after-free vulnerability in the
 mm_answer_pam_free_ctx function in monitor.c in sshd might have allowed
 local users to gain privileges by leveraging control of the sshd uid to
 send an unexpectedly early MONITOR_REQ_PAM_FREE_CTX request.
Additional a bug was fixed that could lead to openssh not working in chroot (bsc#947458).");

  script_tag(name:"affected", value:"'openssh' package(s) on SUSE Linux Enterprise Debuginfo 11-SP4, SUSE Linux Enterprise Desktop 11-SP4, SUSE Linux Enterprise Server 11-SP4.");

  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 == "SLES11.0SP4") {

  if(!isnull(res = isrpmvuln(pkg:"openssh", rpm:"openssh~6.6p1~13.1", rls:"SLES11.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssh-askpass-gnome", rpm:"openssh-askpass-gnome~6.6p1~13.3", rls:"SLES11.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssh-fips", rpm:"openssh-fips~6.6p1~13.1", rls:"SLES11.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssh-helpers", rpm:"openssh-helpers~6.6p1~13.1", rls:"SLES11.0SP4"))) {
    report += res;
  }

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

exit(0);