High severity · published Aug 2, 2023
CVE-2023-26451
Functions with insufficient randomness were used to generate authorization tokens of the integrated oAuth Authorization Service
7.5
CVSS
1.2%
EPSS
No
On KEV
Description
Functions with insufficient randomness were used to generate authorization tokens of the integrated oAuth Authorization Service. Authorization codes were predictable for third parties and could be used to intercept and take over the client authorization process. As a result, other users accounts could be compromised. The oAuth Authorization Service is not enabled by default. We have updated the implementation to use sources with sufficient randomness to generate authorization tokens. No publicly available exploits are known.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OA
Open-xchange Appsuite Backend · Open-xchange
through 8.11.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26451
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-26451
Third Party Advisory
http://packetstormsecurity.com/files/173943/OX-App-Suite-SSRF-SQL-Injection-Cross-Site-Scripting.html
Mailing List
http://seclists.org/fulldisclosure/2023/Aug/8
documentation.open-xchange.com
https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0003.json
Release Notes
https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6230_7.10.6_2023-05-02.pdf
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