CVSS2
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
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
98.9%
Markus Krell discovered that xymon, a network- and applications-monitoring system, was vulnerable to the following security issues :
CVE-2016-2054 The incorrect handling of user-supplied input in the ‘config’ command can trigger a stack-based buffer overflow, resulting in denial of service (via application crash) or remote code execution.
CVE-2016-2055 The incorrect handling of user-supplied input in the ‘config’ command can lead to an information leak by serving sensitive configuration files to a remote user.
CVE-2016-2056 The commands handling password management do not properly validate user-supplied input, and are thus vulnerable to shell command injection by a remote user.
CVE-2016-2057 Incorrect permissions on an internal queuing system allow a user with a local account on the xymon master server to bypass all network-based access control lists, and thus inject messages directly into xymon.
CVE-2016-2058 Incorrect escaping of user-supplied input in status webpages can be used to trigger reflected cross-site scripting attacks.
#%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-3495. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(89046);
script_version("2.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2016-2054", "CVE-2016-2055", "CVE-2016-2056", "CVE-2016-2057", "CVE-2016-2058");
script_xref(name:"DSA", value:"3495");
script_name(english:"Debian DSA-3495-1 : xymon - 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:
"Markus Krell discovered that xymon, a network- and
applications-monitoring system, was vulnerable to the following
security issues :
- CVE-2016-2054
The incorrect handling of user-supplied input in the
'config' command can trigger a stack-based buffer
overflow, resulting in denial of service (via
application crash) or remote code execution.
- CVE-2016-2055
The incorrect handling of user-supplied input in the
'config' command can lead to an information leak by
serving sensitive configuration files to a remote user.
- CVE-2016-2056
The commands handling password management do not
properly validate user-supplied input, and are thus
vulnerable to shell command injection by a remote user.
- CVE-2016-2057
Incorrect permissions on an internal queuing system
allow a user with a local account on the xymon master
server to bypass all network-based access control lists,
and thus inject messages directly into xymon.
- CVE-2016-2058
Incorrect escaping of user-supplied input in status
webpages can be used to trigger reflected cross-site
scripting attacks."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-2054"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-2055"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-2056"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-2057"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-2058"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/xymon"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2016/dsa-3495"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the xymon packages.
For the stable distribution (jessie), these problems have been fixed
in version 4.3.17-6+deb8u1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
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_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'Xymon useradm Command Execution');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xymon");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/04/13");
script_set_attribute(attribute:"patch_publication_date", value:"2016/02/29");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/01");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 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:"8.0", prefix:"xymon", reference:"4.3.17-6+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"xymon-client", reference:"4.3.17-6+deb8u1")) 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");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2054
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2055
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2056
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2057
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2058
packages.debian.org/source/jessie/xymon
security-tracker.debian.org/tracker/CVE-2016-2054
security-tracker.debian.org/tracker/CVE-2016-2055
security-tracker.debian.org/tracker/CVE-2016-2056
security-tracker.debian.org/tracker/CVE-2016-2057
security-tracker.debian.org/tracker/CVE-2016-2058
www.debian.org/security/2016/dsa-3495
CVSS2
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
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
98.9%