PYSEC-2020-213

    Dashboard / Vulnerabilities / PYSEC-2020-213

    PYSEC-2020-213

    Published: 24 Jan 2020Last Modified: 10 Jun 2026

    Summary:

    Details: Tornado before 3.2.2 sends arbitrary responses that contain a fixed CSRF token and may be sent with HTTP compression, which makes it easier for remote attackers to conduct a BREACH attack and determine this token via a series of crafted requests.

    References: https://github.com/tornadoweb/tornado/commit/1c36307463b1e8affae100bf9386948e6c1b2308, https://bugzilla.novell.com/show_bug.cgi?id=930362, http://openwall.com/lists/oss-security/2015/05/19/4, https://bugzilla.redhat.com/show_bug.cgi?id=1222816, http://www.tornadoweb.org/en/stable/releases/v3.2.2.html, https://github.com/advisories/GHSA-8vpw-mgpf-mpvv

    Affected packages

    Package

    Name: tornado

    Purl: pkg:pypi/tornado

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -1c36307463b1e8affae100bf9386948e6c1b2308

    Affected versions

    0.2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2020-213 | CVE-DB