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ZABBIX "vfs.file.cksum" Denial of Service Vulnerability
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Secunia Advisory:
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SA29383
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Release Date:
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2008-03-14
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Last Update:
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2008-03-19
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | ZABBIX 1.x
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| | CVE reference: | CVE-2008-1353 (Secunia mirror)
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This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released! |
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Description:
Milen Rangelov has discovered a vulnerability in ZABBIX, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to the improper implementation of the "vfs.file.cksum" command in "zabbix_agentd". This can be exploited to disable the processing of valid requests via multiple "vfs.file.cksum" commands, having e.g. "/dev/urandom" as a parameter, sent to the port on which "zabbix_agentd" is listening (port 10050/TCP by default).
Successful exploitation requires that the malicious requests are sent from an authorized host.
The vulnerability is confirmed in version 1.4.4. Other versions may also be affected.
Solution:
Restrict access to trusted hosts only.
Provided and/or discovered by:
Milen Rangelov
Changelog:
2008-03-19: Added CVE reference.
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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3 Related Secunia Security Advisories
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1. Zabbix "UserParameter" Privilege Escalation Weakness
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2. ZABBIX SNMP Buffer Overflow Vulnerability
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3. ZABBIX Format String and Buffer Overflow Vulnerabilities
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