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nessusThis script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DLA-2598.NASL
HistoryMar 19, 2021 - 12:00 a.m.

Debian DLA-2598-1 : squid3 security update

2021-03-1900:00:00
This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
11

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

0.003 Low

EPSS

Percentile

69.7%

Due to improper input validation, Squid is vulnerable to an HTTP Request Smuggling attack.

This problem allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by Squid security controls.

For Debian 9 stretch, this problem has been fixed in version 3.5.23-5+deb9u6.

We recommend that you upgrade your squid3 packages.

For the detailed security status of squid3 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/squid3

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2598-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(147902);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/04/01");

  script_cve_id("CVE-2020-25097");
  script_xref(name:"IAVB", value:"2021-B-0021");

  script_name(english:"Debian DLA-2598-1 : squid3 security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description",
    value:
"Due to improper input validation, Squid is vulnerable to an HTTP
Request Smuggling attack.

This problem allows a trusted client to perform HTTP Request Smuggling
and access services otherwise forbidden by Squid security controls.

For Debian 9 stretch, this problem has been fixed in version
3.5.23-5+deb9u6.

We recommend that you upgrade your squid3 packages.

For the detailed security status of squid3 please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/squid3

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2021/03/msg00022.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/squid3"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/squid3"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-25097");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:squid");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:squid-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:squid-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:squid-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:squid-purge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:squid3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:squidclient");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/03/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/03/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/19");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"9.0", prefix:"squid", reference:"3.5.23-5+deb9u6")) flag++;
if (deb_check(release:"9.0", prefix:"squid-cgi", reference:"3.5.23-5+deb9u6")) flag++;
if (deb_check(release:"9.0", prefix:"squid-common", reference:"3.5.23-5+deb9u6")) flag++;
if (deb_check(release:"9.0", prefix:"squid-dbg", reference:"3.5.23-5+deb9u6")) flag++;
if (deb_check(release:"9.0", prefix:"squid-purge", reference:"3.5.23-5+deb9u6")) flag++;
if (deb_check(release:"9.0", prefix:"squid3", reference:"3.5.23-5+deb9u6")) flag++;
if (deb_check(release:"9.0", prefix:"squidclient", reference:"3.5.23-5+deb9u6")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
VendorProductVersionCPE
debiandebian_linuxsquidp-cpe:/a:debian:debian_linux:squid
debiandebian_linuxsquid-cgip-cpe:/a:debian:debian_linux:squid-cgi
debiandebian_linuxsquid-commonp-cpe:/a:debian:debian_linux:squid-common
debiandebian_linuxsquid-dbgp-cpe:/a:debian:debian_linux:squid-dbg
debiandebian_linuxsquid-purgep-cpe:/a:debian:debian_linux:squid-purge
debiandebian_linuxsquid3p-cpe:/a:debian:debian_linux:squid3
debiandebian_linuxsquidclientp-cpe:/a:debian:debian_linux:squidclient
debiandebian_linux9.0cpe:/o:debian:debian_linux:9.0

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

0.003 Low

EPSS

Percentile

69.7%