Debian: Security Advisory (DSA-4686-1)

# 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("1.3.6.1.4.1.25623.1.0.704686");
  script_cve_id("CVE-2019-17571");
  script_tag(name:"creation_date", value:"2020-05-17 03:00:11 +0000 (Sun, 17 May 2020)");
  script_version("2024-02-02T05:06:07+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:"2020-01-03 18:06:18 +0000 (Fri, 03 Jan 2020)");

  script_name("Debian: Security Advisory (DSA-4686-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 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(10|9)");

  script_xref(name:"Advisory-ID", value:"DSA-4686-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2020/DSA-4686-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4686");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/apache-log4j1.2");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'apache-log4j1.2' package(s) announced via the DSA-4686-1 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 the SocketServer class included in apache-log4j1.2, a logging library for java, is vulnerable to deserialization of untrusted data. An attacker can take advantage of this flaw to execute arbitrary code in the context of the logger application by sending a specially crafted log event.

For the oldstable distribution (stretch), this problem has been fixed in version 1.2.17-7+deb9u1.

For the stable distribution (buster), this problem has been fixed in version 1.2.17-8+deb10u1.

We recommend that you upgrade your apache-log4j1.2 packages.

For the detailed security status of apache-log4j1.2 please refer to its security tracker page at: [link moved to references]");

  script_tag(name:"affected", value:"'apache-log4j1.2' package(s) on Debian 9, Debian 10.");

  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 == "DEB10") {

  if(!isnull(res = isdpkgvuln(pkg:"liblog4j1.2-java", ver:"1.2.17-8+deb10u1", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"liblog4j1.2-java-doc", ver:"1.2.17-8+deb10u1", rls:"DEB10"))) {
    report += res;
  }

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

if(release == "DEB9") {

  if(!isnull(res = isdpkgvuln(pkg:"liblog4j1.2-java", ver:"1.2.17-7+deb9u1", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"liblog4j1.2-java-doc", ver:"1.2.17-7+deb9u1", rls:"DEB9"))) {
    report += res;
  }

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

exit(0);