// For flags

CVE-2020-7066

get_headers() silently truncates after a null byte

Severity Score

4.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers() with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it. This may cause some software to make incorrect assumptions about the target of the get_headers() and possibly send some information to a wrong server.

En las versiones de PHP 7.2.x anterior a la versión 7.2.29, 7.3.x anterior a 7.3.16 y 7.4.x anterior a 7.4.4, mientras usa get_headers () con la URL suministrada por el usuario, si la URL contiene un carácter cero (\ 0), el La URL se truncará silenciosamente en ella. Esto puede hacer que algunos programas hagan suposiciones incorrectas sobre el objetivo de get_headers () y posiblemente envíen información a un servidor incorrecto.

*Credits: 64796c6e69 at gmail dot com
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-01-15 CVE Reserved
  • 2020-03-27 CVE Published
  • 2024-07-11 EPSS Updated
  • 2024-09-17 CVE Updated
  • 2024-09-17 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-170: Improper Null Termination
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.2.0 < 7.2.29
Search vendor "Php" for product "Php" and version " >= 7.2.0 < 7.2.29"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.3.0 < 7.3.16
Search vendor "Php" for product "Php" and version " >= 7.3.0 < 7.3.16"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.4.0 < 7.4.4
Search vendor "Php" for product "Php" and version " >= 7.4.0 < 7.4.4"
-
Affected
Tenable
Search vendor "Tenable"
 Tenable.sc
Search vendor "Tenable" for product "Tenable.sc"
 < 5.19.0
Search vendor "Tenable" for product "Tenable.sc" and version " < 5.19.0"
-
Affected
Tenable
Search vendor "Tenable"
 Tenable.sc
Search vendor "Tenable" for product "Tenable.sc"
 5.19.0
Search vendor "Tenable" for product "Tenable.sc" and version "5.19.0"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.1
Search vendor "Opensuse" for product "Leap" and version "15.1"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected