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CRITICAL · 9.8

CVE-2020-21526

An Arbitrary file writing vulnerability in halo v1.1.3. In an interface to write files in the background, a directory traversal check is performed on the input path parameter, but the startsWith funct...

Vulnerability Description

An Arbitrary file writing vulnerability in halo v1.1.3. In an interface to write files in the background, a directory traversal check is performed on the input path parameter, but the startsWith function can be used to bypass it.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
HaloHalo1.1.3

Related Weaknesses (CWE)

CWE-22

References

FAQ

What is CVE-2020-21526?

CVE-2020-21526 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An Arbitrary file writing vulnerability in halo v1.1.3. In an interface to write files in the background, a directory traversal check is performed on the input path parameter, but the startsWith funct...

How severe is CVE-2020-21526?

CVE-2020-21526 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2020-21526?

Check the references section above for vendor advisories and patch information. Affected products include: Halo Halo.