VDB-101857 · CVE-2017-9303 · BID 98776

Laravel up to 5.4.21 Password Reset URL Phishing 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.
5.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Laravel up to 5.4.21. It has been rated as problematic. This affects an unknown function of the component Password Reset URL. This manipulation causes input validation (Phishing). This vulnerability is tracked as CVE-2017-9303. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Laravel up to 5.4.21 and classified as critical. Affected by this vulnerability is an unknown function of the component Password Reset URL. The manipulation with an unknown input leads to a input validation vulnerability (Phishing). The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Laravel 5.4.x before 5.4.22 does not properly constrain the host portion of a password-reset URL, which makes it easier for remote attackers to conduct phishing attacks by specifying an attacker-controlled host.

The bug was discovered 05/09/2017. The weakness was disclosed 05/29/2017 (Website). The advisory is shared at laravel-news.com. This vulnerability is known as CVE-2017-9303 since 05/29/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly 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.

Upgrading to version 5.4.22 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 98776†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Laravel

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
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: Phishing
Class: Input validation / Phishing
CWE: CWE-20
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Laravel 5.4.22

Timelineinfo

05/09/2017 🔍
05/29/2017 +20 days 🔍
05/29/2017 +0 days 🔍
05/29/2017 +0 days 🔍
05/29/2017 +0 days 🔍
05/30/2017 +1 days 🔍
05/30/2017 +0 days 🔍

Sourcesinfo

Advisory: laravel-news.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-9303 (🔍)
GCVE (CVE): GCVE-0-2017-9303
GCVE (VulDB): GCVE-100-101857
SecurityFocus: 98776 - Laravel CVE-2017-9303 Security Bypass Vulnerability
OSVDB: - CVE-2017-9303 - Laravel - Laravel - Medium

Entryinfo

Created: 05/30/2017 09:03
Changes: 05/30/2017 09:03 (66)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.