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FortinetCVE-2021-26095

HistoryJul 20, 2021 - 11:15 a.m.

CVE-2021-26095

2021-07-2011:15:11

fortinet

web.nvd.nist.gov

cve-2021-26095

fortimail

session management

cryptographic issues

remote attacker

privilege escalation

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

8.7

Confidence

High

EPSS

0.004

Percentile

72.4%

JSON

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.

Affected configurations

Nvd

Node

fortinetfortimailRange6.2.0–6.2.6

fortinetfortimailRange6.4.0–6.4.5

VendorProductVersionCPE
fortinetfortimail*cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
fortinet	fortimail	*	cpe:2.3:a:fortinet:fortimail::::::::

CNA Affected

[
  {
    "product": "Fortinet FortiMail",
    "vendor": "Fortinet",
    "versions": [
      {
        "status": "affected",
        "version": "FortiMail 6.4.0 through 6.4.4 and 6.2.0 through 6.2.6"
      }
    ]
  }
]

References

fortiguard.com/advisory/FG-IR-21-019

Social References

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

8.7

Confidence

High

EPSS

0.004

Percentile

72.4%

JSON

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