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nessusThis script is Copyright (C) 2017-2021 Tenable Network Security, Inc.DEBIAN_DLA-871.NASL
HistoryMar 27, 2017 - 12:00 a.m.

Debian DLA-871-1 : python3.2 security update

2017-03-2700:00:00
This script is Copyright (C) 2017-2021 Tenable Network Security, Inc.
www.tenable.com
21

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

EPSS

0.016

Percentile

87.6%

It was discovered that there was a TLS stripping vulnerability in the smptlib library distributed with the CPython interpreter.

The library did not return an error if StartTLS failed, which might have allowed man-in-the-middle attackers to bypass the TLS protections by leveraging a network position to block the StartTLS command.

For Debian 7 ‘Wheezy’, this issue has been fixed in python3.2 version 3.2.3-7+deb7u1.

We recommend that you upgrade your python3.2 packages.

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.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-871-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(97966);
  script_version("3.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2016-0772");

  script_name(english:"Debian DLA-871-1 : python3.2 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:
"It was discovered that there was a TLS stripping vulnerability in the
smptlib library distributed with the CPython interpreter.

The library did not return an error if StartTLS failed, which might
have allowed man-in-the-middle attackers to bypass the TLS protections
by leveraging a network position to block the StartTLS command.

For Debian 7 'Wheezy', this issue has been fixed in python3.2 version
3.2.3-7+deb7u1.

We recommend that you upgrade your python3.2 packages.

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/2017/03/msg00029.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/python3.2"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:idle-python3.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpython3.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.2-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.2-examples");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3.2-minimal");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/03/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/03/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 Tenable Network Security, Inc.");
  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:"7.0", prefix:"idle-python3.2", reference:"3.2.3-7+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libpython3.2", reference:"3.2.3-7+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"python3.2", reference:"3.2.3-7+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"python3.2-dbg", reference:"3.2.3-7+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"python3.2-dev", reference:"3.2.3-7+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"python3.2-doc", reference:"3.2.3-7+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"python3.2-examples", reference:"3.2.3-7+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"python3.2-minimal", reference:"3.2.3-7+deb7u1")) 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");

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

EPSS

0.016

Percentile

87.6%