GitHub Advisory DatabaseGHSA-7W4P-72J7-V7C2Phar object injection in PHPMailer
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.006 Low
EPSS
Percentile
78.7%
PHPMailer versions prior to 6.0.6 and 5.2.27 are vulnerable to an object injection attack by passing phar:// paths into addAttachment() and other functions that may receive unfiltered local paths, possibly leading to RCE. See this article for more info on this type of vulnerability. Mitigated by blocking the use of paths containing URL-protocol style prefixes such as phar://. Reported by Sehun Oh of cyberone.kr.
Impact
Object injection, possible remote code execution
Patches
Fixed in 6.0.6 and 5.2.27
Workarounds
Validate and sanitise user input before using.
References
https://nvd.nist.gov/vuln/detail/CVE-2018-19296
For more information
If you have any questions or comments about this advisory:
- Open a private issue in the PHPMailer project
| CPE | Name | Operator | Version |
|---|---|---|---|
| phpmailer/phpmailer | lt | 6.0.6 | |
| phpmailer/phpmailer | lt | 5.2.27 |
References
github.com/advisories/GHSA-7w4p-72j7-v7c2
github.com/FriendsOfPHP/security-advisories/blob/master/phpmailer/phpmailer/CVE-2018-19296.yaml
github.com/PHPMailer/PHPMailer/releases/tag/v5.2.27
github.com/PHPMailer/PHPMailer/releases/tag/v6.0.6
github.com/PHPMailer/PHPMailer/security/advisories/GHSA-7w4p-72j7-v7c2
lists.debian.org/debian-lts-announce/2018/12/msg00020.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/
lists.fedoraproject.org/archives/list/[email protected]/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/
lists.fedoraproject.org/archives/list/[email protected]/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/
nvd.nist.gov/vuln/detail/CVE-2018-19296
www.debian.org/security/2018/dsa-4351
Related
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.006 Low
EPSS
Percentile
78.7%