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nessusThis script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-4458.NASL
HistoryJun 10, 2019 - 12:00 a.m.

Debian DSA-4458-1 : cyrus-imapd - security update

2019-06-1000:00:00
This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
17

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.4

Confidence

High

EPSS

0.029

Percentile

90.8%

A flaw was discovered in the CalDAV feature in httpd of the Cyrus IMAP server, leading to denial of service or potentially the execution of arbitrary code via a crafted HTTP PUT operation for an event with a long iCalendar property name.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4458. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(125784);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/16");

  script_cve_id("CVE-2019-11356");
  script_xref(name:"DSA", value:"4458");

  script_name(english:"Debian DSA-4458-1 : cyrus-imapd - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"A flaw was discovered in the CalDAV feature in httpd of the Cyrus IMAP
server, leading to denial of service or potentially the execution of
arbitrary code via a crafted HTTP PUT operation for an event with a
long iCalendar property name.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/cyrus-imapd");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/cyrus-imapd");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2019/dsa-4458");
  script_set_attribute(attribute:"solution", value:
"Upgrade the cyrus-imapd packages.

For the stable distribution (stretch), this problem has been fixed in
version 2.5.10-3+deb9u1.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11356");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/06/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cyrus-imapd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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:"cyrus-admin", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"cyrus-caldav", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"cyrus-clients", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"cyrus-common", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"cyrus-dev", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"cyrus-doc", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"cyrus-imapd", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"cyrus-murder", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"cyrus-nntpd", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"cyrus-pop3d", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"cyrus-replication", reference:"2.5.10-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcyrus-imap-perl", reference:"2.5.10-3+deb9u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.4

Confidence

High

EPSS

0.029

Percentile

90.8%