CVE-2021-26099
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。 FortiMail在7.0.0之前存在安全漏洞，该漏洞源于基于身份的加密服务中缺少加密步骤，可能会让拥有加密主密钥的攻击者可利用该漏洞通过观察密文的一些不变属性来破坏其机密性。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2021-26099
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Missing cryptographic steps in the Identity-Based Encryption service of FortiMail before 7.0.0 may allow an attacker who comes in possession of the encrypted master keys to compromise their confidentiality by observing a few invariant properties of the ciphertext.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Fortinet FortiMail 安全漏洞
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。 FortiMail在7.0.0之前存在安全漏洞，该漏洞源于基于身份的加密服务中缺少加密步骤，可能会让拥有加密主密钥的攻击者可利用该漏洞通过观察密文的一些不变属性来破坏其机密性。
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 before 7.0.0 | - |
|
II. Public POCs for CVE-2021-26099
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2021-26099 (1)
-
https://fortiguard.com/advisory/FG-IR-20-244 x_refsource_CONFIRM
Same Patch Batch · Fortinet · 2021-07-12 · 6 CVEs total
| CVE-2021-24013 | 8.8 HIGH | FortiMail路径遍历漏洞 |
| CVE-2021-24015 | 7.2 HIGH | FortiMail操作系统命令注入漏洞 |
| CVE-2021-26088 | 7.1 HIGH | Fortinet FSSO Collector Agent 授权问题漏洞 |
| CVE-2021-26089 | 6.7 MEDIUM | Fortinet FortiClient 后置链接漏洞 |
| CVE-2021-26090 | 5.3 MEDIUM | Fortinet FortiMail 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-26099
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