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Vahagn Vardanian

Vahagn Vardanian

Co-founder and CTO of RedRays

Bypass of email verification in e-recruiting, SAP security note 2507798

Description

UPDATE 28th September 2017 : This security note has been re-released with updated correction instructions.

When an user registers to the e-recruiting application, he/she receives a link by email to confirm access to the provided email address. However, this measure can be bypassed and attackers can register and confirm e-mail addresses that they do not have access to.

CVSS Information

CVSS v3 Base Score: 6.5 / 10
CVSS v3 Base Vector:

AV : Attack Vector (Related exploit range)

Network (N)

AC : Attack Complexity (Required attack complexity)

Low (L)

PR : Privileges Required (Level of privileges needed to exploit)

None (N)

UI : User Interaction (Required user participation)

None (N)

S : Scope (Change in scope due to impact caused to components beyond the vulnerable component)

Unchanged (U)

C : Impact to Confidentiality

None (N)

I : Impact to Integrity

Low (L)

A : Impact to Availability

Low (L)

SAP provides this CVSS v3 base score as an estimate of the risk posed by the issue reported in this note. This estimate does not take into account your own system configuration or operational environment. It is not intended to replace any risk assessments you are advised to conduct when deciding on the applicability or priority of this SAP security note. For more information, see the FAQ section at https://support.sap.com/securitynotes.

Available fix and Supported packages

  • ERECRUIT | 605 | 605
  • ERECRUIT | 606 | 606
  • ERECRUIT | 616 | 616
  • ERECRUIT | 617 | 617
  • ERECRUIT | 800 | 800
  • ERECRUIT | 801 | 801
  • ERECRUIT | 802 | 802
  • ERECRUIT 605 | SAPK-60517INERECRUIT |
  • ERECRUIT 606 | SAPK-60620INERECRUIT |
  • ERECRUIT 616 | SAPK-61612INERECRUIT |
  • ERECRUIT 617 | SAPK-61713INERECRUIT |
  • ERECRUIT 802 | SAPK-80201INERECRUIT |
  • ERECRUIT 800 | SAPK-80005INERECRUIT |
  • ERECRUIT 801 | SAPK-80103INERECRUIT |

Affected component

    PA-ER
    E-Recruiting

CVSS

Score: 0

PoC

Detailed vulnerability information added to RedRays Security Platform. Contact [email protected] for details.

URL

https://launchpad.support.sap.com/#/notes/2507798

TAGS

#E-recruiting
#RECFA
#VERIF
#E-mail-verification
#Verify-Email
#HRRCF_C_REGISTER_UI
#WDW_VERIFICATION.

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