VDB-105912 · CVE-2017-12775 · GCVE-0-2017-12775

Question2Answer up to 1.7.4 qa-install.php User input validation

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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Question2Answer up to 1.7.4. This issue affects some unknown processing of the file qa-include/qa-install.php. The manipulation results in input validation (User). This vulnerability is reported as CVE-2017-12775. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Question2Answer up to 1.7.4. Affected is some unknown functionality of the file qa-include/qa-install.php. The manipulation with an unknown input leads to a input validation vulnerability (User). CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, and integrity. CVE summarizes:

qa-include/qa-install.php in Question2Answer before 1.7.5 allows remote attackers to create multiple user accounts.

The bug was discovered 08/09/2017. The weakness was disclosed 08/29/2017 (Website). The advisory is shared for download at question2answer.org. This vulnerability is traded as CVE-2017-12775 since 08/09/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:qa-include/qa-install.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.7.5 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Question2Answer

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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

Name: User
Class: Input validation / User
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Question2Answer 1.7.5
Patch: github.com

Timelineinfo

08/09/2017 🔍
08/09/2017 +0 days 🔍
08/29/2017 +20 days 🔍
08/29/2017 +0 days 🔍
08/30/2017 +1 days 🔍
12/27/2022 +1945 days 🔍

Sourcesinfo

Advisory: 6013ca1c83bf232008f7be815c0e4821fb6b120a
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12775 (🔍)
GCVE (CVE): GCVE-0-2017-12775
GCVE (VulDB): GCVE-100-105912

Entryinfo

Created: 08/30/2017 08:51
Updated: 12/27/2022 07:46
Changes: 08/30/2017 08:51 (52), 11/11/2019 15:43 (8), 12/27/2022 07:46 (5)
Complete: 🔍
Cache ID: 216::103