SUSE: Security Advisory (SUSE-SU-2021:0227-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2021.0227.1");
  script_cve_id("CVE-2021-23239", "CVE-2021-23240", "CVE-2021-3156");
  script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 2021)");
  script_version("2024-08-08T05:05:41+0000");
  script_tag(name:"last_modification", value:"2024-08-08 05:05:41 +0000 (Thu, 08 Aug 2024)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/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:"2021-02-03 19:42:10 +0000 (Wed, 03 Feb 2021)");

  script_name("SUSE: Security Advisory (SUSE-SU-2021:0227-1)");
  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=(SLES15\.0SP1|SLES15\.0SP2|SLES15\.0SP3|SLES15\.0)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2021:0227-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2021/suse-su-20210227-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'sudo' package(s) announced via the SUSE-SU-2021:0227-1 advisory.");

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

  script_tag(name:"insight", value:"This update for sudo fixes the following issues:

A Heap-based buffer overflow in sudo could be exploited to allow a user
 to gain root privileges [bsc#1181090,CVE-2021-3156]

It was possible for a user to test for the existence of a directory due
 to a Race Condition in `sudoedit` [bsc#1180684,CVE-2021-23239]

A Possible Symlink Attack vector existed in `sudoedit` if SELinux was
 running in permissive mode [bsc#1180685, CVE-2021-23240]

It was possible for a User to enable Debug Settings not Intended for
 them [bsc#1180687]");

  script_tag(name:"affected", value:"'sudo' package(s) on SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, SUSE Linux Enterprise High Performance Computing 15, SUSE Linux Enterprise High Performance Computing 15-SP1, SUSE Linux Enterprise Module for Basesystem 15-SP1, SUSE Linux Enterprise Module for Basesystem 15-SP2, SUSE Linux Enterprise Module for Basesystem 15-SP3, SUSE Linux Enterprise Server 15, SUSE Linux Enterprise Server 15-SP1, SUSE Linux Enterprise Server for SAP 15, SUSE Linux Enterprise Server for SAP 15-SP1, SUSE Manager Proxy 4.0, SUSE Manager Retail Branch Server 4.0, SUSE Manager Server 4.0.");

  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");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

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

res = "";
report = "";

if(release == "SLES15.0SP1") {

  if(!isnull(res = isrpmvuln(pkg:"sudo", rpm:"sudo~1.8.22~4.15.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-debuginfo", rpm:"sudo-debuginfo~1.8.22~4.15.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-debugsource", rpm:"sudo-debugsource~1.8.22~4.15.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-devel", rpm:"sudo-devel~1.8.22~4.15.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

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

if(release == "SLES15.0SP2") {

  if(!isnull(res = isrpmvuln(pkg:"sudo", rpm:"sudo~1.8.22~4.15.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-debuginfo", rpm:"sudo-debuginfo~1.8.22~4.15.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-debugsource", rpm:"sudo-debugsource~1.8.22~4.15.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-devel", rpm:"sudo-devel~1.8.22~4.15.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

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

if(release == "SLES15.0SP3") {

  if(!isnull(res = isrpmvuln(pkg:"sudo", rpm:"sudo~1.8.22~4.15.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-debuginfo", rpm:"sudo-debuginfo~1.8.22~4.15.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-debugsource", rpm:"sudo-debugsource~1.8.22~4.15.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-devel", rpm:"sudo-devel~1.8.22~4.15.1", rls:"SLES15.0SP3"))) {
    report += res;
  }

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

if(release == "SLES15.0") {

  if(!isnull(res = isrpmvuln(pkg:"sudo", rpm:"sudo~1.8.22~4.15.1", rls:"SLES15.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-debuginfo", rpm:"sudo-debuginfo~1.8.22~4.15.1", rls:"SLES15.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-debugsource", rpm:"sudo-debugsource~1.8.22~4.15.1", rls:"SLES15.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sudo-devel", rpm:"sudo-devel~1.8.22~4.15.1", rls:"SLES15.0"))) {
    report += res;
  }

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

exit(0);