CVE-2017-0377

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay's family), which might allow remote attackers to defeat intended anonymity properties by leveraging the existence of large families.

Las versiones 0.3.x de Tor anteriores a la 0.3.0.9 cuentan con un algoritmo de selección de restricciones que solo considera el exit relay (no la familia del exit relay), lo que podría permitir que atacantes remotos superen las propiedades de anonimato planeadas aprovechando la existencia de grandes familias.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-11-29 CVE Reserved
2017-07-02 CVE Published
2023-05-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (5)

URL	Tag	Source
https://security-tracker.debian.org/CVE-2017-0377	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/torproject/tor/commit/665baf5ed5c6186d973c46cdea165c0548027350	2017-07-14

URL	Date	SRC
https://blog.torproject.org/blog/tor-0309-released-security-update-clients	2017-07-14
https://blog.torproject.org/blog/tor-0314-alpha-released-security-update-clients	2017-07-14
https://trac.torproject.org/projects/tor/ticket/22753	2017-07-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				0.3.0.1 Search vendor "Torproject" for product "Tor" and version "0.3.0.1"		alpha		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				0.3.0.2 Search vendor "Torproject" for product "Tor" and version "0.3.0.2"		alpha		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				0.3.0.3 Search vendor "Torproject" for product "Tor" and version "0.3.0.3"		alpha		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				0.3.0.4 Search vendor "Torproject" for product "Tor" and version "0.3.0.4"		-		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				0.3.0.5 Search vendor "Torproject" for product "Tor" and version "0.3.0.5"		-		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				0.3.0.6 Search vendor "Torproject" for product "Tor" and version "0.3.0.6"		-		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				0.3.0.7 Search vendor "Torproject" for product "Tor" and version "0.3.0.7"		-		Affected
Torproject Search vendor "Torproject"		Tor Search vendor "Torproject" for product "Tor"				0.3.0.8 Search vendor "Torproject" for product "Tor" and version "0.3.0.8"		-		Affected