Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2021-27116
CVE-2021-27116:
vulnerability analysis and mitigation
Overview
An issue was discovered in file profile.go in function MemProf in beego through version 2.0.2, which allows attackers to launch symlink attacks locally. The vulnerability was identified and assigned CVE-2021-27116, affecting the admin module of the Beego framework (NVD, GitHub Issue).
Technical details
The vulnerability exists in the profile.go file, specifically in the MemProf and GetCPUProfile functions. These functions fail to properly validate whether created files already exist, which can lead to symlink attacks. The issue has been assigned a CVSS v3.1 Base Score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (NVD).
Impact
The vulnerability allows local attackers to perform symlink attacks, potentially leading to unauthorized file access and modification. The high CVSS score indicates that successful exploitation could result in significant impact on the confidentiality, integrity, and availability of the affected system (NVD).
Mitigation and workarounds
The vulnerability affects beego versions through 2.0.2. Users should upgrade to a patched version of the framework when available (NVD).
Additional resources
Source: This report was generated using AI
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