PT-2023-20629 · Ox Software Gmbh+1 · Ox App Suite+1

Published 2023-06-20 · Updated 2024-01-12 · CVE-2023-26432

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions No specific software or versions are mentioned in the provided descriptions.

Description The issue arises when adding an external mail account, as the processing of SMTP "capabilities" responses is not limited to plausible sizes. An attacker with access to a rogue SMTP service could trigger requests that lead to excessive resource usage and eventually service unavailability. The fix involves limiting accepted SMTP server responses to a reasonable length/size. No publicly available exploits are known.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2023-26432

Affected Products

Ox App Suite

Open-Xchange Appsuite Backend

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2023-26432 · Security Note
• https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-26432 · Vendor Advisory
• https://t.me/cvenotify/52854 · Telegram Post
• https://t.me/cvenotify/67179 · Telegram Post
• http://seclists.org/fulldisclosure/2023/Jun/8 · Note
• https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf · Note
• http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html · Note