CVE-2021-26095
Quick assessment
Affected
Fortinet Fortinet FortiMail
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.
Fortinet FortiMail是美国飞塔（Fortinet）公司的一套电子邮件安全网关产品。该产品提供电子邮件安全防护和数据保护等功能。 Fortinet FortiMail 存在加密问题漏洞，该漏洞源于FortiMail 会话管理中的各种加密问题的组合，包括会话 cookie 的加密构造，拥有有效会话 cookie 的远程用户可以对其进行解密并显示或更改其内容。攻击者可利用该漏洞提升权限。
Possible ATT&CK Techniques 1 AI
T1528 · Steal Application Access Token
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I. Basic Information for CVE-2021-26095
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The combination of various cryptographic issues in the session management of FortiMail 6.4.0 through 6.4.4 and 6.2.0 through 6.2.6, including the encryption construction of the session cookie, may allow a remote attacker already in possession of a cookie to possibly reveal and alter or forge its content, thereby escalating privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Fortinet FortiMail 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiMail是美国飞塔（Fortinet）公司的一套电子邮件安全网关产品。该产品提供电子邮件安全防护和数据保护等功能。 Fortinet FortiMail 存在加密问题漏洞，该漏洞源于FortiMail 会话管理中的各种加密问题的组合，包括会话 cookie 的加密构造，拥有有效会话 cookie 的远程用户可以对其进行解密并显示或更改其内容。攻击者可利用该漏洞提升权限。
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 |
|---|---|---|---|---|
| Fortinet | Fortinet FortiMail | FortiMail 6.4.0 through 6.4.4 and 6.2.0 through 6.2.6 | - |
|
II. Public POCs for CVE-2021-26095
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2021-26095 (1)
-
https://fortiguard.com/advisory/FG-IR-21-019 x_refsource_CONFIRM
Same Patch Batch · Fortinet · 2021-07-20 · 3 CVEs total
| CVE-2021-24022 | 6.7 MEDIUM | Fortinet FortiManager 缓冲区错误漏洞 |
| CVE-2021-22125 | 6.3 MEDIUM | Fortinet FortiSandbox 操作系统命令注入漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-26095
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