Secunia Security Advisory - A weakness has been reported in cURL, which can be exploited by malicious people to conduct spoofing attacks.
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TITLE:
cURL GSSAPI Credential Delegation Weakness
SECUNIA ADVISORY ID:
SA45067
VERIFY ADVISORY:
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http://secunia.com/advisories/45067/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45067
RELEASE DATE:
2011-06-25
DISCUSS ADVISORY:
http://secunia.com/advisories/45067/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
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http://secunia.com/advisories/45067/
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DESCRIPTION:
A weakness has been reported in cURL, which can be exploited by
malicious people to conduct spoofing attacks.
The weakness is caused due to the GSS/Negotiate feature
unconditionally performing credential delegation, which allows a
server to obtain the client's security credentials. This can be
exploited by a malicious server to impersonate the client to any
other server using the same GSSAPI mechanism.
Successful exploitation requires tricking a user into connecting to a
malicious server using the GSS/Negotiate feature.
The weakness is reported in versions 7.10.6 through 7.21.6.
SOLUTION:
Update to version 7.21.7 or apply patch.
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
PROVIDED AND/OR DISCOVERED BY:
The vendor credits Richard Silverman.
ORIGINAL ADVISORY:
http://curl.haxx.se/docs/adv_20110623.html
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
DEEP LINKS:
Further details available in Customer Area:
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EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXTENDED SOLUTION:
Further details available in Customer Area:
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EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
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