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CVE-2023-26434

Published: Jun 20, 2023Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-400
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
1.1%
Top 37.4%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

When adding an external mail account, processing of POP3 "capabilities" responses are not limited to plausible sizes. Attacker with access to a rogue POP3 service could trigger requests that lead to excessive resource usage and eventually service unavailability. We now limit accepted POP3 server response to reasonable length/size. No publicly available exploits are known.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-400NVD-CWE-noinfo

Affected Products

OX App Suite backendOpen-XchangeCommunications
OX App SuiteOX Software GmbH
On-prem
Communications / email-server-client
open-xchange appsuite backendopen-xchangeCommunications
open-xchangecommercialDECommunicationsaka open-xchange gmbh, ox
ox software gmbhcommercialDECommunicationsaka ox app suite

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html
packetstormsecurity.com
http://seclists.org/fulldisclosure/2023/Jun/8
seclists.org
https://documentation.open-xchange.com/security/advisories/csaf/oxas-adv-2023-0002.json
documentation.open-xchange.com
and 4 more references View all →

Timeline

Published
Jun 20, 2023
Last Updated
Nov 21, 2024

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