Huawei EulerOS: Security Advisory for samba (EulerOS-SA-2017-1105)

# 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("1.3.6.1.4.1.25623.1.1.2.2017.1105");
  script_cve_id("CVE-2016-2125", "CVE-2016-2126", "CVE-2017-2619", "CVE-2017-7494");
  script_tag(name:"creation_date", value:"2020-01-23 10:51:10 +0000 (Thu, 23 Jan 2020)");
  script_version("2024-02-05T14:36:55+0000");
  script_tag(name:"last_modification", value:"2024-02-05 14:36:55 +0000 (Mon, 05 Feb 2024)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:"2017-06-09 17:04:57 +0000 (Fri, 09 Jun 2017)");

  script_name("Huawei EulerOS: Security Advisory for samba (EulerOS-SA-2017-1105)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone AG");
  script_family("Huawei EulerOS Local Security Checks");
  script_dependencies("gb_huawei_euleros_consolidation.nasl");
  script_mandatory_keys("ssh/login/euleros", "ssh/login/rpms", re:"ssh/login/release=EULEROS\-2\.0SP2");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2017-1105");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2017-1105");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'samba' package(s) announced via the EulerOS-SA-2017-1105 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 found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users. (CVE-2016-2125)

A flaw was found in the way Samba handled PAC (Privilege Attribute Certificate) checksums. A remote, authenticated attacker could use this flaw to crash the winbindd process. (CVE-2016-2126)

A race condition was found in samba server. A malicious samba client could use this flaw to access files and directories, in areas of the server file system not exported under the share definitions. (CVE-2017-2619)

A remote code execution flaw was found in Samba. A malicious authenticated samba client, having write access to the samba share, could use this flaw to execute arbitrary code as root. (CVE-2017-7494)");

  script_tag(name:"affected", value:"'samba' package(s) on Huawei EulerOS V2.0SP2.");

  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 == "EULEROS-2.0SP2") {

  if(!isnull(res = isrpmvuln(pkg:"libsmbclient", rpm:"libsmbclient~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libwbclient", rpm:"libwbclient~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba", rpm:"samba~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba-client", rpm:"samba-client~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba-client-libs", rpm:"samba-client-libs~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba-common", rpm:"samba-common~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba-common-libs", rpm:"samba-common-libs~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba-common-tools", rpm:"samba-common-tools~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba-libs", rpm:"samba-libs~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba-python", rpm:"samba-python~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba-winbind", rpm:"samba-winbind~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba-winbind-clients", rpm:"samba-winbind-clients~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"samba-winbind-modules", rpm:"samba-winbind-modules~4.2.10~7.h4", rls:"EULEROS-2.0SP2"))) {
    report += res;
  }

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

exit(0);