VDB-75731 · CVE-2015-2959 · BID 75065

Zoho Netflow Analyzer up to Build 10250 Guest access control

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.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Zoho Netflow Analyzer up to Build 10250. It has been classified as critical. The impacted element is an unknown function of the component Guest Handler. The manipulation leads to access control. This vulnerability is documented as CVE-2015-2959. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Zoho Netflow Analyzer up to Build 10250 and classified as critical. This issue affects an unknown code block of the component Guest Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Zoho NetFlow Analyzer build 10250 and earlier does not check for administrative authorization, which allows remote attackers to obtain sensitive information, modify passwords, or remove accounts by leveraging the guest role.

The weakness was released 06/09/2015 by hasegawa as confirmed advisory (Website). It is possible to read the advisory at support.zoho.com. The identification of this vulnerability is CVE-2015-2959 since 04/07/2015. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 115236 (Zoho NetFlow Analyzer Multiple Vulnerabilities).

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at SecurityFocus (BID 75065†) and SecurityTracker (ID 1032516†). Entries connected to this vulnerability are available at VDB-75732, VDB-75733 and VDB-75747. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Zoho

Name

Netflow Analyzer

Version

Build 10250

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Access control
CWE: CWE-284 / CWE-266
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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Timelineinfo

04/07/2015 🔍
06/05/2015 +59 days 🔍
06/08/2015 +3 days 🔍
06/09/2015 +1 days 🔍
06/09/2015 +0 days 🔍
06/09/2015 +0 days 🔍
04/05/2019 +1396 days 🔍

Sourcesinfo

Advisory: support.zoho.com
Researcher: hasegawa
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-2959 (🔍)
GCVE (CVE): GCVE-0-2015-2959
GCVE (VulDB): GCVE-100-75731
SecurityFocus: 75065 - Zoho Corporation NetFlow Analyzer CVE-2015-2959 Security Bypass Vulnerability
SecurityTracker: 1032516

See also: 🔍

Entryinfo

Created: 06/09/2015 10:25
Updated: 04/05/2019 09:23
Changes: 06/09/2015 10:25 (57), 04/05/2019 09:23 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.