Access Restriction Bypass Affecting tor package, versions <0.1.2.16-1


Severity

Recommended
0.0
medium
0
10

Based on Debian security rating

    Threat Intelligence

    EPSS
    1.89% (89th percentile)

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  • Snyk ID SNYK-DEBIAN10-TOR-371001
  • published 7 Aug 2007
  • disclosed 7 Aug 2007

How to fix?

Upgrade Debian:10 tor to version 0.1.2.16-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tor package and not the tor package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

Tor before 0.1.2.16, when ControlPort is enabled, does not properly restrict commands to localhost port 9051, which allows remote attackers to modify the torrc configuration file, compromise anonymity, and have other unspecified impact via HTTP POST data containing commands without valid authentication, as demonstrated by an HTML form (1) hosted on a web site or (2) injected by a Tor exit node.

CVSS Scores

version 3.1
Expand this section

NVD

5.4 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None