Zend Server 5.6.0 Data Cache cross site scripting

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.
7.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Zend Server 5.6.0. It has been declared as problematic. Affected by this issue is some unknown functionality of the component Data Cache. The manipulation results in cross site scripting. The attack can be launched remotely. Moreover, an exploit is present. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Zend Server 5.6.0. Affected is some unknown processing of the component Data Cache. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 02/22/2012. The weakness was disclosed 03/10/2012 by Gjoko Krstic (LiquidWorm) with Zero Science Lab (Website). The advisory is available at zeroscience.mk. The public release has been coordinated in cooperation with the vendor. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

A public exploit has been developed by Gjoko Krstic (LiquidWorm) in HTML and been published immediately after the advisory. The exploit is shared for download at zeroscience.mk. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 15 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 5.6.0 SP1 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (73941), Exploit-DB (18582), SecurityFocus (BID 52397†) and OSVDB (80614†). The entries VDB-4960, VDB-4961, VDB-4963 and VDB-4964 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Zend

Name

Server

Version

5.6.0

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.8
VulDB Temp Score: 7.9
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: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Gjoko Krstic (LiquidWorm)
Programming Language: 🔍
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Server 5.6.0 SP1

Timelineinfo

02/22/2012 🔍
02/23/2012 +1 days 🔍
02/23/2012 +0 days 🔍
03/08/2012 +14 days 🔍
03/10/2012 +2 days 🔍
03/10/2012 +0 days 🔍
03/10/2012 +0 days 🔍
03/12/2012 +2 days 🔍
03/29/2012 +17 days 🔍
04/02/2012 +4 days 🔍
08/29/2017 +1975 days 🔍

Sourcesinfo

Advisory: zeroscience.mk
Researcher: Gjoko Krstic (LiquidWorm)
Organization: Zero Science Lab
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-4962
X-Force: 73941 - Zend Server multiple components cross-site scripting, Medium Risk
SecurityFocus: 52397 - Zend Server Multiple HTML Injection Vulnerabilities
OSVDB: 80614

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 04/02/2012 15:27
Updated: 08/29/2017 08:51
Changes: 04/02/2012 15:27 (71), 08/29/2017 08:51 (2)
Complete: 🔍
Cache ID: 216:67D:103