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    CVE-2020-26176

    An issue was discovered in tangro Business Workflow before 1.18.1. No (or broken) access control checks exist on the /api/document/<DocumentID>/attachments API endpoint. Knowing a document ID, an attacker can list all the attachments of a workitem, including their respective IDs. This allows the attacker to gather valid attachment IDs for workitems that do not belong to them.

    Published:Dec 18, 2020
    Last Modified:Nov 21, 2024
    EPS:Dec 18, 2020
    EPSS Score:0.00199
    CVSS Score:4.3

    Affected Products

    Vendor
    Tangro
    Product
    Business Workflow

    Exploits

    https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2020-26171 (CVSS 4.3) — In tangro Business Workflow before 1.18.1, the documentId of attachment uploads to /api/document/attachments/u…
    CVE-2020-26172 (CVSS 4.2) — Every login in tangro Business Workflow before 1.18.1 generates the same JWT token, which allows an attacker t…
    CVE-2020-26173 (CVSS 3.1) — An incorrect access control implementation in Tangro Business Workflow before 1.18.1 allows an attacker to dow…
    CVE-2020-26174 (CVSS 8.8) — tangro Business Workflow before 1.18.1 requests a list of allowed filetypes from the server and restricts uplo…
    CVE-2020-26175 (CVSS 6.5) — In tangro Business Workflow before 1.18.1, an attacker can manipulate the value of PERSON in requests to /api/…
    CVE-2020-26177 (CVSS 4.3) — In tangro Business Workflow before 1.18.1, a user's profile contains some items that are greyed out and thus a…
    CVE-2020-26178 (CVSS 5.3) — In tangro Business Workflow before 1.18.1, knowing an attachment ID, it is possible to download workitem attac…

    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