jeecg-boot up to 2.4.5 API checkOnlyUser?username=admin permission

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.
6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in jeecg-boot up to 2.4.5 and classified as critical. This affects an unknown part of the file /sys/user/checkOnlyUser?username=admin of the component API. Such manipulation leads to permission. This vulnerability is uniquely identified as CVE-2021-37306. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in jeecg-boot up to 2.4.5. It has been rated as critical. Affected by this issue is an unknown code of the file /sys/user/checkOnlyUser?username=admin of the component API. The manipulation with an unknown input leads to a permission vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An Insecure Permissions issue in jeecg-boot 2.4.5 and earlier allows remote attackers to gain escalated privilege and view sensitive information via api uri: api uri:/sys/user/checkOnlyUser?username=admin.

The weakness was disclosed 02/03/2023 as 2794. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-37306 since 07/21/2021. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1222.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-0701). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

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

Exploitinginfo

Class: Permission
CWE: CWE-275 / 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-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/21/2021 🔍
02/03/2023 +562 days 🔍
02/03/2023 +0 days 🔍
07/05/2025 +883 days 🔍

Sourcesinfo

Advisory: 2794
Status: Confirmed

CVE: CVE-2021-37306 (🔍)
GCVE (CVE): GCVE-0-2021-37306
GCVE (VulDB): GCVE-100-220112
EUVD: 🔍

Entryinfo

Created: 02/03/2023 20:36
Updated: 07/05/2025 17:08
Changes: 02/03/2023 20:36 (39), 03/04/2023 13:58 (11), 07/05/2025 17:08 (16)
Complete: 🔍
Cache ID: 216::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.

Interested in the pricing of exploits?

See the underground prices here!