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nessusThis script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-4072.NASL
HistoryDec 26, 2017 - 12:00 a.m.

Debian DSA-4072-1 : bouncycastle - security update

2017-12-2600:00:00
This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
15

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.006 Low

EPSS

Percentile

77.8%

Hanno Boeck, Juraj Somorovsky and Craig Young discovered that the TLS implementation in Bouncy Castle is vulnerable to an adaptive chosen ciphertext attack against RSA keys.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4072. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(105432);
  script_version("3.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2017-13098");
  script_xref(name:"DSA", value:"4072");

  script_name(english:"Debian DSA-4072-1 : bouncycastle - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Hanno Boeck, Juraj Somorovsky and Craig Young discovered that the TLS
implementation in Bouncy Castle is vulnerable to an adaptive chosen
ciphertext attack against RSA keys."
  );
  # https://security-tracker.debian.org/tracker/source-package/bouncycastle
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?17470e37"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/bouncycastle"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2017/dsa-4072"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the bouncycastle packages.

For the stable distribution (stretch), this problem has been fixed in
version 1.56-1+deb9u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:bouncycastle");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/12/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/12/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 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:"libbcmail-java", reference:"1.56-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libbcmail-java-doc", reference:"1.56-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libbcpg-java", reference:"1.56-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libbcpg-java-doc", reference:"1.56-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libbcpkix-java", reference:"1.56-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libbcpkix-java-doc", reference:"1.56-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libbcprov-java", reference:"1.56-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libbcprov-java-doc", reference:"1.56-1+deb9u1")) 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_linuxbouncycastlep-cpe:/a:debian:debian_linux:bouncycastle
debiandebian_linux9.0cpe:/o:debian:debian_linux:9.0

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.006 Low

EPSS

Percentile

77.8%