ID CVE-2016-2054
Summary Multiple buffer overflows in xymond/xymond.c in xymond in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a long filename, involving handling a "config" command.
References
Vulnerable Configurations
  • Debian Linux 8.0 (Jessie)
    cpe:2.3:o:debian:debian_linux:8.0
  • Xymon 4.1.0
    cpe:2.3:a:xymon:xymon:4.1.0
  • Xymon 4.1.1
    cpe:2.3:a:xymon:xymon:4.1.1
  • Xymon 4.1.2
    cpe:2.3:a:xymon:xymon:4.1.2
  • Xymon 4.1.2p1
    cpe:2.3:a:xymon:xymon:4.1.2:p1
  • Xymon 4.1.2p2
    cpe:2.3:a:xymon:xymon:4.1.2:p2
  • Xymon 4.2 Alfa
    cpe:2.3:a:xymon:xymon:4.2:alfa
  • Xymon 4.2 Beta 20060605
    cpe:2.3:a:xymon:xymon:4.2:beta20060605
  • Xymon 4.2 Release Candidate 20060712
    cpe:2.3:a:xymon:xymon:4.2:rc20060712
  • Xymon 4.2.0
    cpe:2.3:a:xymon:xymon:4.2.0
  • Xymon 4.2.2
    cpe:2.3:a:xymon:xymon:4.2.2
  • Xymon 4.2.2 Release Candidate 1
    cpe:2.3:a:xymon:xymon:4.2.2:rc1
  • Xymon 4.2.3
    cpe:2.3:a:xymon:xymon:4.2.3
  • Xymon 4.2.3 Release Candidate 1
    cpe:2.3:a:xymon:xymon:4.2.3:rc1
  • Xymon 4.3.0
    cpe:2.3:a:xymon:xymon:4.3.0
  • Xymon 4.3.0 beta1
    cpe:2.3:a:xymon:xymon:4.3.0:beta1
  • Xymon 4.3.0 beta2
    cpe:2.3:a:xymon:xymon:4.3.0:beta2
  • Xymon 4.3.0 beta3
    cpe:2.3:a:xymon:xymon:4.3.0:beta3
  • Xymon 4.3.0 release candidate 1
    cpe:2.3:a:xymon:xymon:4.3.0:rc1
  • Xymon 4.3.1
    cpe:2.3:a:xymon:xymon:4.3.1
  • Xymon 4.3.2
    cpe:2.3:a:xymon:xymon:4.3.2
  • Xymon 4.3.3
    cpe:2.3:a:xymon:xymon:4.3.3
  • Xymon 4.3.4
    cpe:2.3:a:xymon:xymon:4.3.4
  • Xymon 4.3.5
    cpe:2.3:a:xymon:xymon:4.3.5
  • Xymon 4.3.6
    cpe:2.3:a:xymon:xymon:4.3.6
  • Xymon 4.3.7
    cpe:2.3:a:xymon:xymon:4.3.7
  • Xymon 4.3.8
    cpe:2.3:a:xymon:xymon:4.3.8
  • Xymon 4.3.9
    cpe:2.3:a:xymon:xymon:4.3.9
  • Xymon 4.3.10
    cpe:2.3:a:xymon:xymon:4.3.10
  • Xymon 4.3.11
    cpe:2.3:a:xymon:xymon:4.3.11
  • Xymon 4.3.12
    cpe:2.3:a:xymon:xymon:4.3.12
  • Xymon 4.3.13
    cpe:2.3:a:xymon:xymon:4.3.13
  • Xymon 4.3.14
    cpe:2.3:a:xymon:xymon:4.3.14
  • Xymon 4.3.15
    cpe:2.3:a:xymon:xymon:4.3.15
  • Xymon 4.3.16
    cpe:2.3:a:xymon:xymon:4.3.16
  • Xymon 4.3.17
    cpe:2.3:a:xymon:xymon:4.3.17
  • Xymon 4.3.18
    cpe:2.3:a:xymon:xymon:4.3.18
  • Xymon 4.3.19
    cpe:2.3:a:xymon:xymon:4.3.19
  • Xymon 4.3.19 Release Candidate 1
    cpe:2.3:a:xymon:xymon:4.3.19:rc1
  • Xymon 4.3.20
    cpe:2.3:a:xymon:xymon:4.3.20
  • Xymon 4.3.21
    cpe:2.3:a:xymon:xymon:4.3.21
  • Xymon 4.3.22
    cpe:2.3:a:xymon:xymon:4.3.22
  • Xymon 4.3.23
    cpe:2.3:a:xymon:xymon:4.3.23
  • Xymon 4.3.24
    cpe:2.3:a:xymon:xymon:4.3.24
CVSS
Base: 7.5 (as of 14-04-2016 - 09:33)
Impact:
Exploitability:
CWE CWE-119
CAPEC
  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
  • Overflow Binary Resource File
    An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the attacker access to the execution stack and execute arbitrary code in the target process. This attack pattern is a variant of standard buffer overflow attacks using an unexpected vector (binary files) to wrap its attack and open up a new attack vector. The attacker is required to either directly serve the binary content to the victim, or place it in a locale like a MP3 sharing application, for the victim to download. The attacker then is notified upon the download or otherwise locates the vulnerability opened up by the buffer overflow.
  • Buffer Overflow via Symbolic Links
    This type of attack leverages the use of symbolic links to cause buffer overflows. An attacker can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.
  • Overflow Variables and Tags
    This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The attacker crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.
  • Buffer Overflow via Parameter Expansion
    In this attack, the target software is given input that the attacker knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.
  • Buffer Overflow in an API Call
    This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An attacker who has access to an API may try to embed malicious code in the API function call and exploit a buffer overflow vulnerability in the function's implementation. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.
  • Buffer Overflow in Local Command-Line Utilities
    This attack targets command-line utilities available in a number of shells. An attacker can leverage a vulnerability found in a command-line utility to escalate privilege to root.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
nessus via4
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-3495.NASL
    description 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.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 89046
    published 2016-03-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=89046
    title Debian DSA-3495-1 : xymon - security update
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-488.NASL
    description Markus Krell discovered that Xymon (formerly known as Hobbit), 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-2016-2058 Incorrect escaping of user-supplied input in status webpages can be used to trigger reflected cross-site scripting attacks. For Debian 7 'Wheezy', these problems have been fixed in version 4.3.0~beta2.dfsg-9.1+deb7u1. We recommend that you upgrade your xymon 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.
    last seen 2019-02-21
    modified 2018-07-09
    plugin id 91324
    published 2016-05-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91324
    title Debian DLA-488-1 : xymon security update
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_1CECD5E0C37211E596D614DAE9D210B8.NASL
    description J.C. Cleaver reports : - CVE-2016-2054: Buffer overflow in xymond handling of 'config' command - CVE-2016-2055: Access to possibly confidential files in the Xymon configuration directory - CVE-2016-2056: Shell command injection in the 'useradm' and 'chpasswd' web applications - CVE-2016-2057: Incorrect permissions on IPC queues used by the xymond daemon can bypass IP access filtering - CVE-2016-2058: JavaScript injection in 'detailed status webpage' of monitoring items; XSS vulnerability via malformed acknowledgment messages
    last seen 2019-02-21
    modified 2018-12-19
    plugin id 88666
    published 2016-02-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=88666
    title FreeBSD : xymon-server -- multiple vulnerabilities (1cecd5e0-c372-11e5-96d6-14dae9d210b8)
packetstorm via4
data source https://packetstormsecurity.com/files/download/135758/xymon-execoverflowdisclsoe.txt
id PACKETSTORM:135758
last seen 2016-12-05
published 2016-02-15
reporter Xymon Software
source https://packetstormsecurity.com/files/135758/Xymon-4.3.x-Buffer-Overflow-Code-Execution-Information-Disclosure.html
title Xymon 4.3.x Buffer Overflow / Code Execution / Information Disclosure
refmap via4
bugtraq 20160214 Xymon: Critical security issues in all versions prior to 4.3.25
confirm
debian DSA-3495
misc http://packetstormsecurity.com/files/135758/Xymon-4.3.x-Buffer-Overflow-Code-Execution-Information-Disclosure.html
mlist [Xymon] 20160208 Xymon 4.3.25 - Important Security Update
Last major update 18-04-2016 - 09:00
Published 13-04-2016 - 12:59
Last modified 09-10-2018 - 15:59
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