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Vahagn Vardanian

Co-founder and CTO of RedRays

Unauthorized modification of displayed content in BSP apps., SAP security note 1688421

SAP Note 1688421
SAP Security Note
High priority

SAP security note 1688421, "Unauthorized modification of displayed content in BSP apps.", is a program error note released on 27.07.2012. Below are the symptom, SAP recommended solution and the affected software components.

ComponentBasis Components > Security – Read KBA 2985997 for subcomponents > Secure Store and Forward
PriorityCorrection with high priority
TypeSAP Security Note
Version2
StatusReleased for Customer
Released on27.07.2012

Description

Symptom

The BSP applications SSFDEMODIGSIG and SSFDEMODIGSIG2 can be abused by an attacker, allowing them to modify displayed application content without authorization, and to potentially obtain authentication information from other legitimate users.

Solution

Apply correction.

WarningYou have to perform this manual activity separately in each system into which you transport the Note for implementation.

Reason and prerequisites

Pages within the BSP applications SSFDEMODIGSIG and SSFDEMODIGSIG2 do not sufficiently encode output parameters, resulting in a reflected cross-site scripting issue. A reflected cross-site scripting attack can be used to non-permanently deface or modify displayed content from a website. Reflected cross-site scripting can be used to steal another user’s authentication information, such as data relating to their current session. An attacker who gains access to this data may use it to impersonate the user and access all information with the same rights as the target user. If an administrator is impersonated, the security of the application may be fully compromised.

Affected components

  • SAP_BASIS 620 to 640
  • SAP_BASIS 700 to 702
  • SAP_BASIS 710 to 730
  • SAP_BASIS 731

Full note on SAP: SAP Support Launchpad note 1688421

Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].

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