High severity · published Jun 19, 2020
CVE-2020-8162
A client side enforcement of server side security vulnerability exists in rails < 5.2.4.2 and rails < 6.0.3.1 ActiveStorage's S3 adapter that allows the Content-Length of a direct…
7.5
CVSS
3%
EPSS
No
On KEV
Description
A client side enforcement of server side security vulnerability exists in rails < 5.2.4.2 and rails < 6.0.3.1 ActiveStorage's S3 adapter that allows the Content-Length of a direct file upload to be modified by an end user bypassing upload limits.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.0% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
RA
Rails · Rubyonrails
before 5.2.4.2; 6.0.0 before 6.0.3.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8162
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8162
Mailing List
https://groups.google.com/g/rubyonrails-security/c/PjU3946mreQ
Exploit
https://hackerone.com/reports/789579
Third Party Advisory
https://www.debian.org/security/2020/dsa-4766
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