phpservermon src/psm/Service/User.php setUserLoggedIn predictable algorithm in random number generator

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.
3.4$0-$5k0.00

Summaryinfo

A vulnerability was found in phpservermon. It has been declared as problematic. This vulnerability affects the function setUserLoggedIn of the file src/psm/Service/User.php. The manipulation results in use of predictable algorithm in random number generator. This vulnerability is cataloged as CVE-2021-4241. Furthermore, there is an exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in phpservermon (version now known). Affected is the function setUserLoggedIn of the file src/psm/Service/User.php. The manipulation with an unknown input leads to a use of predictable algorithm in random number generator vulnerability. CWE is classifying the issue as CWE-1241. The device uses an algorithm that is predictable and generates a pseudo-random number. This is going to have an impact on confidentiality.

The weakness was shared 11/15/2022. The advisory is shared for download at huntr.dev. This vulnerability is traded as CVE-2021-4241. Technical details and a public exploit are known.

The exploit is shared for download at huntr.dev. It is declared as proof-of-concept. By approaching the search of inurl:src/psm/Service/User.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch bb10a5f3c68527c58073258cb12446782d223bc3 is able to eliminate this problem. The bugfix is ready for download at github.com.

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

Productinfo

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 2.6
VulDB Temp Score: 2.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 2.6
CNA Vector (VulDB): 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Use of predictable algorithm in random number generator
CWE: CWE-1241 / CWE-338 / CWE-331
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: bb10a5f3c68527c58073258cb12446782d223bc3

Timelineinfo

11/15/2022 🔍
11/15/2022 +0 days 🔍
11/15/2022 +0 days 🔍
12/19/2022 +34 days 🔍

Sourcesinfo

Product: github.com

Advisory: bb10a5f3c68527c58073258cb12446782d223bc3
Status: Confirmed

CVE: CVE-2021-4241 (🔍)
GCVE (CVE): GCVE-0-2021-4241
GCVE (VulDB): GCVE-100-213744
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/15/2022 23:20
Updated: 12/19/2022 08:31
Changes: 11/15/2022 23:20 (41), 12/19/2022 08:27 (4), 12/19/2022 08:31 (21)
Complete: 🔍
Cache ID: 216:689:103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

Want to know what is going to be exploited?

We predict KEV entries!