Vulnerability Details : CVE-2021-27272
This vulnerability allows remote attackers to delete arbitrary files on affected installations of NETGEAR ProSAFE Network Management System 1.6.0.26. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the ReportTemplateController class. When parsing the path parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-12123.
Vulnerability category: Directory traversalDenial of service
Products affected by CVE-2021-27272
- cpe:2.3:a:netgear:prosafe_network_management_system:1.6.0.26:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27272
1.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27272
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:S/C:N/I:P/A:C |
8.0
|
7.8
|
NIST | |
|
7.1
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
2.8
|
4.2
|
Zero Day Initiative | |
|
7.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
2.8
|
4.2
|
NIST |
CWE ids for CVE-2021-27272
-
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: zdi-disclosures@trendmicro.com (Primary)
References for CVE-2021-27272
-
https://www.zerodayinitiative.com/advisories/ZDI-21-355/
ZDI-21-355 | Zero Day InitiativeThird Party Advisory;VDB Entry
-
https://kb.netgear.com/000062723/Security-Advisory-for-Denial-of-Service-on-NMS300-PSV-2020-0537
Security Advisory for Denial of Service on NMS300, PSV-2020-0537 | Answer | NETGEAR SupportVendor Advisory
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