Vulnerability Details : CVE-2020-27871

This vulnerability allows remote attackers to create arbitrary files on affected installations of SolarWinds Orion Platform 2020.2.1. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within VulnerabilitySettings.aspx. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-11902.
Published 2021-02-10 23:15:13
Updated 2021-03-26 19:56:54
Source Zero Day Initiative
View at NVD,   CVE.org
Vulnerability category: Directory traversalExecute code

Exploit prediction scoring system (EPSS) score for CVE-2020-27871

EPSS FAQ
30.16%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 97 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-27871

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.0
 HIGH AV:N/AC:L/Au:S/C:C/I:C/A:C
8.0
10.0
 NIST
7.2
 HIGH CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
1.2
5.9
 Zero Day Initiative
7.2
 HIGH CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
1.2
5.9
 NIST

CWE ids for CVE-2020-27871

  • The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
    Assigned by:
    • nvd@nist.gov (Secondary)
    • zdi-disclosures@trendmicro.com (Primary)

References for CVE-2020-27871

Products affected by CVE-2020-27871

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