Unauthorized modification of displayed content in RTMF, SAP security note 1874288

SAP security note 1874288, "Unauthorized modification of displayed content in RTMF". Below are the symptom, SAP recommended solution and the affected software components.

Description

Symptom

RTMF 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

Under the "SP Patchlevel" tab within this note, you can check for the appropriate SP Patchlevel fixing this issue.

Reason and prerequisites

RTMF does not sufficiently encode cookie 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.

CVSS

Score 4.3 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

References

• 1877335 – Central Note for NetWeaver 7.31 SP10 EP / EPC
• 1877334 – Central Note for NetWeaver 7.40 SP05 EP / EPC
• 1865222 – Central Note for NetWeaver 7.30 SP11 EP / EPC
• 1862086 – Central Note for Portal Platform in SAP NW7.0 EhP2 SP15
• 1855776 – Central Note for Portal Platform in SAP NW7.1 EhP1 SP13
• 1855774 – SAP NetWeaver CE Portal Platform NW7.10 SP18

Affected components

• EPBC2 7.02 – 7.02
• EP-BASIS 7.10 – 7.11
• EP-BASIS 7.20 – 7.20
• EP-BASIS 7.30 – 7.30
• EP-BASIS 7.31 – 7.31
• EP-BASIS 7.40 – 7.40