Zabbix up to 1.8.5/1.9.3 zabbix_agentd vfs.file.cksum resource management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Zabbix up to 1.8.5/1.9.3. It has been classified as problematic. Affected is an unknown function of the file vfs.file.cksum of the component zabbix_agentd. The manipulation leads to resource management. This vulnerability is listed as CVE-2011-3263. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Zabbix up to 1.8.5/1.9.3 (Network Management Software) and classified as problematic. This issue affects an unknown code block of the file vfs.file.cksum of the component zabbix_agentd. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

zabbix_agentd in Zabbix before 1.8.6 and 1.9.x before 1.9.4 allows context-dependent attackers to cause a denial of service (CPU consumption) by executing the vfs.file.cksum command for a special device, as demonstrated by the /dev/urandom device.

The weakness was presented 08/19/2011 (Website). It is possible to read the advisory at zabbix.com. The identification of this vulnerability is CVE-2011-3263. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 71535 (Zabbix 1.9.x < 1.9.4 zabbix_agentd DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses.

Upgrading to version 1.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (69378), Tenable (71535) and Vulnerability Center (SBV-32940†). See VDB-58344 and VDB-58342 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Network Management Software

Name

• Zabbix

Version

• 1.8.0
• 1.8.1
• 1.8.2
• 1.8.3
• 1.8.4
• 1.8.5
• 1.9.0
• 1.9.1
• 1.9.2
• 1.9.3

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 71535
Nessus Name: Zabbix 1.9.x < 1.9.4 zabbix_agentd DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 863959
OpenVAS Name: Fedora Update for zabbix FEDORA-2011-10583
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Zabbix 1.1

Timelineinfo

05/16/2011 🔍
08/19/2011 +94 days 🔍
08/19/2011 +0 days 🔍
08/19/2011 +0 days 🔍
09/05/2011 +17 days 🔍
12/19/2013 +836 days 🔍
03/23/2015 +459 days 🔍
11/18/2021 +2432 days 🔍

Sourcesinfo

Advisory: zabbix.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-3263 (🔍)
GCVE (CVE): GCVE-0-2011-3263
GCVE (VulDB): GCVE-100-58343
X-Force: 69378
SecurityFocus: 63920
Vulnerability Center: 32940 - Zabbix before 1.8.6 and 1.9.x before 1.9.4 Remote Denial of Service Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/18/2021 08:51
Changes: 03/23/2015 16:50 (59), 08/18/2019 10:39 (6), 11/18/2021 08:47 (4), 11/18/2021 08:51 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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