CVE-2016-8616

curl: Case insensitive password comparison

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A flaw was found in curl before version 7.51.0 When re-using a connection, curl was doing case insensitive comparisons of user name and password with the existing connections. This means that if an unused connection with proper credentials exists for a protocol that has connection-scoped credentials, an attacker can cause that connection to be reused if s/he knows the case-insensitive version of the correct password.

Se ha descubierto un problema en versiones anteriores a la 7.51.0 de curl. Al reutilizar una conexión, curl realizaba comparaciones no sensibles a mayúsculas del nombre de usuario y la contraseña en las conexiones existentes. Esto significa que, si existe una conexión no utilizada con credenciales adecuadas para un protocolo que tiene credenciales restringidas a la conexión, un atacante podría provocar que se reutilice esa conexión si este conoce la versión que no distingue entre mayúsculas/minúsculas de la contraseña correcta.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-10-12 CVE Reserved
2016-11-04 CVE Published
2024-08-06 CVE Updated
2024-11-04 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-255: Credentials Management Errors
CWE-287: Improper Authentication
CWE-592: DEPRECATED: Authentication Bypass Issues

CAPEC

References (12)

URL	Tag	Source
http://www.securityfocus.com/bid/94094	Third Party Advisory
http://www.securitytracker.com/id/1037192	Third Party Advisory
https://www.tenable.com/security/tns-2016-21	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html	2023-11-07
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8616	2023-11-07
https://curl.haxx.se/CVE-2016-8616.patch	2023-11-07
https://curl.haxx.se/docs/adv_20161102B.html	2023-11-07

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:2486	2023-11-07
https://access.redhat.com/errata/RHSA-2018:3558	2023-11-07
https://security.gentoo.org/glsa/201701-47	2023-11-07
https://access.redhat.com/security/cve/CVE-2016-8616	2018-11-13
https://bugzilla.redhat.com/show_bug.cgi?id=1388371	2018-11-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Haxx Search vendor "Haxx"		Curl Search vendor "Haxx" for product "Curl"				< 7.51.0 Search vendor "Haxx" for product "Curl" and version " < 7.51.0"		-		Affected