Dear subscribers,
We're sharing our latest advisory with you and like to thank everyone who
contributed in finding and solving those vulnerabilities. Feel free to join our
bug bounty programs for OX App Suite, Dovecot and PowerDNS at YesWeHack.
This advisory has also been published at
https://documentation.open-xchange.com/appsuite/security/advisories/html/2023/oxas-adv-2023-0007.html.
Yours sincerely,
Martin Heiland, Open-Xchange GmbH
Internal reference: OXUIB-2599
Type: CWE-79 (Improper Neutralization of Input During Web Page Generation
('Cross-site Scripting'))
Component: frontend
Report confidence: Confirmed
Solution status: Fixed by vendor
Last affected revision: OX App Suite frontend 7.10.6-rev38
First fixed revision: OX App Suite frontend 7.10.6-rev39
Discovery date: 2023-10-18
Solution date: 2023-12-01
CVE: CVE-2023-41708
CVSS: 5.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)
Details:
XSS using script code as module at app loader. References to the "app loader"
functionality could contain redirects to unexpected locations.
Risk:
Attackers could forge app references that bypass existing safeguards to inject
malicious script code. No publicly available exploits are known.
Solution:
Please deploy the provided updates and patch releases. References to apps are
now controlled more strict to avoid relative references.
---
Internal reference: MWB-2366
Type: CWE-400 (Uncontrolled Resource Consumption)
Component: backend
Report confidence: Confirmed
Solution status: Fixed by vendor
Last affected revision: OX App Suite backend 7.10.6-rev55, OX App Suite backend
7.6.3-rev71, OX App Suite backend 8.19
First fixed revision: OX App Suite backend 7.10.6-rev56, OX App Suite backend
7.6.3-rev72, OX App Suite backend 8.20
Discovery date: 2023-11-02
Solution date: 2023-12-05
CVE: CVE-2023-41707
CVSS: 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Details:
Excessive resource usage through mail search regex. Processing of user-defined
mail search expressions is not limited.
Risk:
Availability of OX App Suite could be reduced due to high processing load. No
publicly available exploits are known.
Solution:
Please deploy the provided updates and patch releases. Processing time of mail
search expressions now gets monitored, and the related request is terminated if
a resource threshold is reached.
---
Internal reference: MWB-2367
Type: CWE-400 (Uncontrolled Resource Consumption)
Component: backend
Report confidence: Confirmed
Solution status: Fixed by vendor
Last affected revision: OX App Suite backend 7.10.6-rev55, OX App Suite backend
7.6.3-rev71, OX App Suite backend 8.19
First fixed revision: OX App Suite backend 7.10.6-rev56, OX App Suite backend
7.6.3-rev72, OX App Suite backend 8.20
Discovery date: 2023-11-02
Solution date: 2023-12-01
CVE: CVE-2023-41706
CVSS: 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Details:
Excessive resource usage through drive search regex. Processing time of drive
search expressions now gets monitored, and the related request is terminated if
a resource threshold is reached.
Risk:
Availability of OX App Suite could be reduced due to high processing load. No
publicly available exploits are known.
Solution:
Please deploy the provided updates and patch releases. Processing of
user-defined drive search expressions is not limited
---
Internal reference: MWB-2392
Type: CWE-400 (Uncontrolled Resource Consumption)
Component: backend
Report confidence: Confirmed
Solution status: Fixed by vendor
Last affected revision: OX App Suite backend 7.10.6-rev55, OX App Suite backend
7.6.3-rev71, OX App Suite backend 8.20
First fixed revision: OX App Suite backend 7.10.6-rev56, OX App Suite backend
7.6.3-rev72, OX App Suite backend 8.21
Discovery date: 2023-11-28
Solution date: 2023-12-06
CVE: CVE-2023-41705
CVSS: 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Details:
High resource consumption by manipulated DAV user-agent strings. Processing of
user-defined DAV user-agent strings is not limited.
Risk:
Availability of OX App Suite could be reduced due to high processing load. No
publicly available exploits are known.
Solution:
Please deploy the provided updates and patch releases. Processing time of DAV
user-agents now gets monitored, and the related request is terminated if a
resource threshold is reached.
---
Internal reference: MWB-2393
Type: CWE-79 (Improper Neutralization of Input During Web Page Generation
('Cross-site Scripting'))
Component: backend
Report confidence: Confirmed
Solution status: Fixed by vendor
Last affected revision: OX App Suite backend 7.10.6-rev55, OX App Suite backend
7.6.3-rev71, OX App Suite backend 8.20
First fixed revision: OX App Suite backend 7.10.6-rev56, OX App Suite backend
7.6.3-rev72, OX App Suite backend 8.21
Discovery date: 2023-11-28
Solution date: 2023-12-06
CVE: CVE-2023-41704
CVSS: 7.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L)
Details:
XSS at E-Mail using CSS CID replacement. Processing of CID references at E-Mail
can be abused to inject malicious script code that passes the sanitization
engine.
Risk:
Malicious script code could be injected to a users sessions when interacting
with E-Mails. No publicly available exploits are known.
Solution:
Please deploy the provided updates and patch releases. CID handing has been
improved and resulting content is checked for malicious content.
---
Internal reference: DOCS-4483
Type: CWE-79 (Improper Neutralization of Input During Web Page Generation
('Cross-site Scripting'))
Component: office
Report confidence: Confirmed
Solution status: Fixed by vendor
Last affected revision: OX App Suite office 7.10.6-rev9, OX App Suite office
8.19
First fixed revision: OX App Suite office 7.10.6-rev10, OX App Suite office 8.20
Discovery date: 2022-05-19
Solution date: 2022-05-23
CVE: CVE-2023-41703
CVSS: 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
Details:
UserIds of mentions are not saved correctly after editing a comment with
mentions. User ID references at mentions in document comments were not
correctly sanitized.
Risk:
Script code could be injected to a users session when working with a malicious
document. No publicly available exploits are known.
Solution:
Please deploy the provided updates and patch releases. User-defined content
like comments and mentions are now filtered to avoid potentially malicious
content.
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