Description

In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, relays (that have incompletely downloaded descriptors) can pick themselves in a circuit path, leading to a degradation of anonymity, aka TROVE-2017-012.

INFO

Published Date :

Dec. 3, 2017, 7:29 a.m.

Last Modified :

Dec. 21, 2017, 6:30 p.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2017-8822 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Tor_project tor
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-8822.

URL Resource
https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516 Vendor Advisory
https://bugs.torproject.org/21534 Issue Tracking Vendor Advisory
https://bugs.torproject.org/24333 Vendor Advisory
https://www.debian.org/security/2017/dsa-4054 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-8822 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-8822 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Dec. 21, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:N/A:N)
    Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
    Changed Reference Type https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516 No Types Assigned https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516 Vendor Advisory
    Changed Reference Type https://bugs.torproject.org/21534 No Types Assigned https://bugs.torproject.org/21534 Issue Tracking, Vendor Advisory
    Changed Reference Type https://bugs.torproject.org/24333 No Types Assigned https://bugs.torproject.org/24333 Vendor Advisory
    Changed Reference Type https://www.debian.org/security/2017/dsa-4054 No Types Assigned https://www.debian.org/security/2017/dsa-4054 Third Party Advisory
    Added CWE CWE-417
    Added CPE Configuration OR *cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:* versions up to (excluding) 0.2.5.16 *cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:* versions from (including) 0.2.6 up to (excluding) 0.2.8.17 *cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:* versions from (including) 0.2.9 up to (excluding) 0.2.9.14 *cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:* versions from (including) 0.3.0 up to (excluding) 0.3.0.13 *cpe:2.3:a:tor_project:tor:*:*:*:*:*:*:*:* versions from (including) 0.3.1 up to (excluding) 0.3.1.9
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 05, 2017

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2017/dsa-4054 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-8822 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2017-8822 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.17 }} -0.02%

score

0.52163

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability