Home / vulnerabilities Secunia Security Advisory 43848
Posted on 23 March 2011
Source : packetstormsecurity.org Link
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TITLE:
RealWin FlexWin Connection Packet Processing Buffer Overflow
Vulnerabilities
SECUNIA ADVISORY ID:
SA43848
VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43848/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43848
RELEASE DATE:
2011-03-22
DISCUSS ADVISORY:
http://secunia.com/advisories/43848/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
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* Criticality Level
* Impact
* Where
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* Operating System / Software
* CVE Reference(s)
http://secunia.com/advisories/43848/
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https://ca.secunia.com/?page=viewadvisory&vuln_id=43848
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* AUTOMATED SCANNING
http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/
DESCRIPTION:
Luigi Auriemma has discovered multiple vulnerabilities in RealWin,
which can be exploited by malicious people to compromise a vulnerable
system.
1) A boundary error when processing "On_FC_CONNECT_FCS_LOGIN" packets
can be exploited to cause a stack-based buffer overflow via a
specially crafted packet sent to TCP port 910.
2) A boundary error when processing "On_FC_CTAGLIST_FCS_CADDTAG",
"On_FC_CTAGLIST_FCS_ADDTAGMS", and "On_FC_BINFILE_FCS_OPENREADFILE"
packets can be exploited to cause a stack-based buffer overflow via a
specially crafted packet sent to TCP port 910.
3) A boundary error when processing "On_FC_CTAGLIST_FCS_CDELTAG"
packets can be exploited to cause a stack-based buffer overflow via a
specially crafted packet sent to TCP port 910.
4) A boundary error when processing "On_FC_RFUSER_FCS_LOGIN" packets
can be exploited to cause a stack-based buffer overflow via a
specially crafted packet sent to TCP port 910.
5) A boundary error when processing "On_FC_BINFILE_FCS_DIRLIST"
packets can be exploited to cause a stack-based buffer overflow via a
specially crafted packet sent to TCP port 910.
6) An input validation error when processing
"On_FC_MISC_FCS_MSGBROADCAST" packets can be exploited to cause a
heap-based buffer overflow via a specially crafted packet sent to TCP
port 910.
7) An input validation error when processing "On_FC_MISC_FCS_MSGSEND"
packets can be exploited to cause a heap-based buffer overflow via a
specially crafted packet sent to TCP port 910.
8) A boundary error when processing "On_FC_CGETTAG_FCS_GETTELEMETRY"
packets can be exploited to cause a stack-based buffer overflow via a
specially crafted packet sent to TCP port 910.
9) A boundary error when processing
"On_FC_CGETTAG_FCS_GETCHANNELTELEMETRY" packets can be exploited to
cause a stack-based buffer overflow via a specially crafted packet
sent to TCP port 910.
10) A boundary error when processing "On_FC_CPUTTAG_FCS_SETTELEMETRY"
packets can be exploited to cause a stack-based buffer overflow via a
specially crafted packet sent to TCP port 910.
11) A boundary error when processing
"On_FC_CPUTTAG_FCS_SETCHANNELTELEMETRY" packets can be exploited to
cause a stack-based buffer overflow via a specially crafted packet
sent to TCP port 910.
12) A boundary error when processing "On_FC_SCRIPT_FCS_STARTPROG"
packets can be exploited to cause a stack-based buffer overflow via a
specially crafted packet sent to TCP port 910.
Successful exploitation of the vulnerabilities allows execution of
arbitrary code.
The vulnerabilities are confirmed in version 2.1 Build 6.1.10.10.
Other versions may also be affected.
SOLUTION:
Restrict access to trusted hosts only (e.g. via network access
control lists).
PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma
ORIGINAL ADVISORY:
http://aluigi.altervista.org/adv/realwin_2-adv.txt
http://aluigi.altervista.org/adv/realwin_3-adv.txt
http://aluigi.altervista.org/adv/realwin_4-adv.txt
http://aluigi.altervista.org/adv/realwin_5-adv.txt
http://aluigi.altervista.org/adv/realwin_6-adv.txt
http://aluigi.altervista.org/adv/realwin_7-adv.txt
http://aluigi.altervista.org/adv/realwin_8-adv.txt
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
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