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TITLE:
SAP RFC Library Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA24722

VERIFY ADVISORY:
http://secunia.com/advisories/24722/

CRITICAL:
Moderately critical

IMPACT:
Exposure of sensitive information, DoS, System access

WHERE:
>From local network

SOFTWARE:
SAP RFC Library 7.x
http://secunia.com/product/13851/
SAP RFC Library 6.x
http://secunia.com/product/13850/

DESCRIPTION:
Mariano Nuņez Di Croce has reported some vulnerabilities in SAP RFC
Library, which can be exploited by malicious people to disclose
potentially sensitive information, cause a DoS (Denial of Service),
and compromise a vulnerable system.

1) The "RFC_SET_REG_SERVER_PROPERTY" RFC function allows to define
the exclusive use of the RFC Server. This can be exploited to cause a
DoS by denying access to other clients.

2) An unspecified buffer overflow exists within the
"SYSTEM_CREATE_INSTANCE" RFC function, which can be exploited to
execute arbitrary code.

3) An unspecified buffer overflow exists within the "RFC_START_GUI"
RFC function, which can be exploited to execute arbitrary code.

4) Two unspecified errors exist within the "RFC_START_PROGRAM" RFC
function. These can be exploited to gain knowledge about the RFC
server's configuration or execute arbitrary code.

5) An error within the "TRUSTED_SYSTEM_SECURITY" function can be
exploited to gain knowledge about existing user accounts and groups
on a RFC server.

The vulnerabilities are reported in SAP RFC Library versions 6.40 and
7.00. Other versions may also be affected.

SOLUTION:
Reportedly, SAP released patches.

PROVIDED AND/OR DISCOVERED BY:
Mariano Nuņez Di Croce

ORIGINAL ADVISORY:
http://www.cybsec.com/vuln/CYBSEC-Security_Advisory_SAP_RFC_SET_REG_SERVER_PROPERTY_RFC_Function_Denial_of_Service.pdf
http://www.cybsec.com/vuln/CYBSEC-Security_Advisory_SAP_RFC_START_GUI_RFC_Function_Buffer_Overflow.pdf
http://www.cybsec.com/vuln/CYBSEC-Security_Advisory_SAP_RFC_START_PROGRAM_RFC_Function_Multiple_Vulnerabilities.pdf
http://www.cybsec.com/vuln/CYBSEC-Security_Advisory_SAP_SYSTEM_CREATE_INSTANCE_RFC_Function_Buffer_Overflow.pdf
http://www.cybsec.com/vuln/CYBSEC-Security_Advisory_SAP_TRUSTED_SYSTEM_SECURITY_RFC_Function_Information_Disclosure.pdf

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