Skip to content

Privilege escalation in beego

High severity GitHub Reviewed Published Apr 6, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

gomod github.com/beego/beego (Go)

Affected versions

< 2.0.2

Patched versions

None
gomod github.com/beego/beego/v2 (Go)
>= 2.0.0, < 2.0.2
2.0.2

Description

An issue was discovered in file profile.go. The MemProf and GetCPUProfile functions do not correctly check whether the created file exists. As a result attackers can launch attacks symlink attacks locally. Attackers can use this vulnerability to escalate privileges.

References

Published by the National Vulnerability Database Apr 5, 2022
Published to the GitHub Advisory Database Apr 6, 2022
Reviewed Apr 7, 2022
Last updated Jan 27, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS score

0.048%
(19th percentile)

Weaknesses

CVE ID

CVE-2021-27116

GHSA ID

GHSA-ffjp-66mx-3qpj

Source code

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.