CVE-2021-4241 : A vulnerability, which was classified as problematic, was found in phpservermon. Affected is the function setUserLoggedI

A vulnerability, which was classified as problematic, was found in phpservermon. Affected is the function setUserLoggedIn of the file src/psm/Service/User.php. The manipulation leads to use of predictable algorithm in random number generator. The exploit has been disclosed to the public and may be used. The name of the patch is bb10a5f3c68527c58073258cb12446782d223bc3. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-213744.

Published 2022-11-15 23:15:15

Updated 2023-07-18 13:52:11

Source VulDB

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-4241

EPSS FAQ

0.08%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 34 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-4241

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.6	LOW	CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N	1.2	1.4	VulDB
Attack Vector: Adjacent Network Attack Complexity: High Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: None Availability: None
5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: None Availability: None

CWE ids for CVE-2021-4241

CWE-330 Use of Insufficiently Random Values

The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

Assigned by: nvd@nist.gov (Primary)

CWE-331 Insufficient Entropy

The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.

Assigned by: cna@vuldb.com (Secondary)

CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.

Assigned by: cna@vuldb.com (Secondary)

CWE-1241 Use of Predictable Algorithm in Random Number Generator

The device uses an algorithm that is predictable and generates a pseudo-random number.

Assigned by: cna@vuldb.com (Secondary)

References for CVE-2021-4241

https://vuldb.com/?id.213744

CVE-2021-4241 | phpservermon User.php setUserLoggedIn predictable algorithm in random number generator
Third Party Advisory
https://github.com/phpservermon/phpservermon/commit/bb10a5f3c68527c58073258cb12446782d223bc3

SECURITY: Replaced mt_rand with random_bytes · phpservermon/phpservermon@bb10a5f · GitHub
Patch;Third Party Advisory
https://huntr.dev/bounties/1-phpservermon/phpservermon/

Use of Predictable Algorithm in Random Number Generator vulnerability found in phpservermon
Exploit;Patch;Third Party Advisory

Products affected by CVE-2021-4241

Phpservermonitor » Php Server Monitor » Version: N/A
cpe:2.3:a:phpservermonitor:php_server_monitor:-:*:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2021-4241

Exploit prediction scoring system (EPSS) score for CVE-2021-4241

CVSS scores for CVE-2021-4241

CWE ids for CVE-2021-4241

References for CVE-2021-4241

Products affected by CVE-2021-4241