Debian: Security Advisory (DSA-4751-1)

# 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("1.3.6.1.4.1.25623.1.0.704751");
  script_cve_id("CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606");
  script_tag(name:"creation_date", value:"2020-08-28 03:00:19 +0000 (Fri, 28 Aug 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:"7.1");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-09-03 16:25:56 +0000 (Thu, 03 Sep 2020)");

  script_name("Debian: Security Advisory (DSA-4751-1)");
  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=DEB10");

  script_xref(name:"Advisory-ID", value:"DSA-4751-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2020/DSA-4751-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4751");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/squid");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'squid' package(s) announced via the DSA-4751-1 advisory.");

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

  script_tag(name:"insight", value:"Several vulnerabilities were discovered in Squid, a fully featured web proxy cache, which could result in request splitting, request smuggling (leading to cache poisoning) and denial of service when processing crafted cache digest responses messages.

For the stable distribution (buster), these problems have been fixed in version 4.6-1+deb10u4.

We recommend that you upgrade your squid packages.

For the detailed security status of squid please refer to its security tracker page at: [link moved to references]");

  script_tag(name:"affected", value:"'squid' package(s) on 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:"squid", ver:"4.6-1+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"squid-cgi", ver:"4.6-1+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"squid-common", ver:"4.6-1+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"squid-purge", ver:"4.6-1+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"squid3", ver:"4.6-1+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"squidclient", ver:"4.6-1+deb10u4", rls:"DEB10"))) {
    report += res;
  }

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

exit(0);