Medium severity · published Jul 30, 2021
CVE-2021-28095
OX Documents before 7.10.5-rev5 has Incorrect Access Control for documents that contain XML structures because hash collisions can occur, due to use of CRC32
4.8
CVSS
0.9%
EPSS
No
On KEV
Description
OX Documents before 7.10.5-rev5 has Incorrect Access Control for documents that contain XML structures because hash collisions can occur, due to use of CRC32.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OD
Open-xchange Documents · Open-xchange
before 7.10.5; 7.10.5; 7.10.5; 7.10.5; 7.10.5; 7.10.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28095
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28095
Third Party Advisory
http://packetstormsecurity.com/files/163569/OX-Documents-7.10.5-Improper-Authorization.html
Mailing List
http://seclists.org/fulldisclosure/2021/Jul/37
Product
https://www.open-xchange.com
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