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CVE-2023-26431

Quick assessment

Affected
OX Software GmbH OX App Suite
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Open-Xchange OX App Suite是德国Open-Xchange公司的一个电子邮件及生产力套件客户端软件。 Open-Xchange OX App Suite存在安全漏洞，该漏洞源于IPv4 映射的 IPv6 地址未被代码识别为local地址，攻击者利用该漏洞可以绕过现有的拒绝列表功能。

CVSS 5.0 · Medium EPSS 0.84% · P56

Possible ATT&CK Techniques 1 AI

T1046 · Network Service Discovery
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I. Basic Information for CVE-2023-26431

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
IPv4-mapped IPv6 addresses did not get recognized as "local" by the code and a connection attempt is made. Attackers with access to user accounts could use this to bypass existing deny-list functionality and trigger requests to restricted network infrastructure to gain insight about topology and running services. We now respect possible IPV4-mapped IPv6 addresses when checking if contained in a deny-list. No publicly available exploits are known.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Open-Xchange OX App Suite 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open-Xchange OX App Suite是德国Open-Xchange公司的一个电子邮件及生产力套件客户端软件。 Open-Xchange OX App Suite存在安全漏洞，该漏洞源于IPv4 映射的 IPv6 地址未被代码识别为local地址，攻击者利用该漏洞可以绕过现有的拒绝列表功能。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OX Software GmbH OX App Suite 0 ~ 7.10.6-rev39 -

II. Public POCs for CVE-2023-26431

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III. Intelligence Information for CVE-2023-26431

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Exploits & Public PoCs for CVE-2023-26431 (1)

Mailing List Discussions for CVE-2023-26431 (1)

Other References for CVE-2023-26431 (3)

Same Patch Batch · OX Software GmbH · 2023-06-20 · 9 CVEs total

CVE-2023-26436 7.1 HIGH Open-Xchange AppSuite 代码问题漏洞
CVE-2023-26428 6.5 MEDIUM Open-Xchange OX App Suite 安全漏洞
CVE-2023-26435 5.0 MEDIUM Open-Xchange App Suite 代码问题漏洞
CVE-2023-26434 4.3 MEDIUM Open-Xchange App Suite 安全漏洞
CVE-2023-26433 4.3 MEDIUM Open-Xchange OX App Suite 安全漏洞
CVE-2023-26432 4.3 MEDIUM Open-Xchange OX App Suite 安全漏洞
CVE-2023-26429 3.5 LOW Open-Xchange OX App Suite 命令注入漏洞
CVE-2023-26427 3.2 LOW Open-Xchange OX App Suite 安全漏洞

IV. Related Vulnerabilities

Same product: OX App Suite
Same vendor: OX Software GmbH
Same weakness: CWE-918

V. Comments for CVE-2023-26431

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