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CVE-2023-5422— SSL Certificates are not checked for E-Mail Handling

Quick assessment

Affected
OTRS AG OTRS
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.

OTRS是德国OTRS公司的一个应用软件。一个服务管理软件。 OTRS 7.0.47 之前、 8.0.37 之前版本、 OTRS Community Edition 6.0.X 到 6.0.34版本存在安全漏洞，该漏洞源于通过 POP3 或 IMAP 获取电子邮件以及通过 SMTP 发送电子邮件的功能使用 OpenSSL 进行基于静态 SSL 或 TLS 的通信， 未使用 SSL_get_verify_result() 函数，证书将始终受信任，攻击者利用该漏洞可以使用无效证书声称自己是受信任的主机。

CVSS 8.7 · High EPSS 0.28% · P18

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2023-5422

Vulnerability Information
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Vulnerability Title
SSL Certificates are not checked for E-Mail Handling
Source: CVE Program / CVE List V5
Vulnerability Description
The functions to fetch e-mail via POP3 or IMAP as well as sending e-mail via SMTP use OpenSSL for static SSL or TLS based communication. As the SSL_get_verify_result() function is not used the certificated is trusted always and it can not be ensured that the certificate satisfies all necessary security requirements. This could allow an attacker to use an invalid certificate to claim to be a trusted host, use expired certificates, or conduct other attacks that could be detected if the certificate is properly validated. This issue affects OTRS: from 7.0.X before 7.0.47, from 8.0.X before 8.0.37; ((OTRS)) Community Edition: from 6.0.X through 6.0.34.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OTRS 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OTRS是德国OTRS公司的一个应用软件。一个服务管理软件。 OTRS 7.0.47 之前、 8.0.37 之前版本、 OTRS Community Edition 6.0.X 到 6.0.34版本存在安全漏洞，该漏洞源于通过 POP3 或 IMAP 获取电子邮件以及通过 SMTP 发送电子邮件的功能使用 OpenSSL 进行基于静态 SSL 或 TLS 的通信， 未使用 SSL_get_verify_result() 函数，证书将始终受信任，攻击者利用该漏洞可以使用无效证书声称自己是受信任的主机。
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
OTRS AG OTRS 7.0.x ~ 7.0.47 -
OTRS AG ((OTRS)) Community Edition 6.0.x ~ 6.0.34 -

II. Public POCs for CVE-2023-5422

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III. Intelligence Information for CVE-2023-5422

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Other References for CVE-2023-5422 (1)

Same Patch Batch · OTRS AG · 2023-10-16 · 3 CVEs total

CVE-2023-38059 5.3 MEDIUM External pictures can be loaded even if not allowed by configuration
CVE-2023-5421 3.5 LOW Possible XSS execution in customer information

IV. Related Vulnerabilities

Same product: OTRS
Same vendor: OTRS AG
Same weakness: CWE-295

V. Comments for CVE-2023-5422

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