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Integer overflow in sshd in OpenSSH 2.9.9 through 3.3 allows remote attackers to execute arbitrary code during challenge response authentication (ChallengeResponseAuthentication) when OpenSSH is using SKEY or BSD_AUTH authentication.
Publish Date : 2002-07-03 Last Update Date : 2008-09-10
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CVSS Scores & Vulnerability Types
| Cvss Score |
10.0 |
| Confidentiality Impact |
Complete
(There is total information disclosure, resulting in all system files being revealed.) |
| Integrity Impact |
Complete
(There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.) |
| Availability Impact |
Complete
(There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.) |
| Access Complexity |
Low
(Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. ) |
| Authentication |
Not required
(Authentication is not required to exploit the vulnerability.) |
| Gained Access |
Admin |
| Vulnerability Type(s) |
Execute CodeOverflow |
| CWE ID |
CWE id is not defined for this vulnerability |
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Vendor Statements
Not vulnerable. This issue did not affect the versions of OpenSSH as shipped with Red Hat Enterprise Linux 3 or later.
This issue did not affect the OpenSSL packages as shipped with Red Hat Enterprise Linux 2.1 as they were not compiled with S/Key or BSD_AUTH support. The upstream patch for this issue and CVE-2002-0640 was included in an errata so that users recompiling OpenSSL with support for those authentication methods would also be protected:
https://rhn.redhat.com/errata/RHSA-2002-131.html
Source:
Redhat
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Products Affected By CVE-2002-0639
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Number Of Affected Versions By Product
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References For CVE-2002-0639
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Metasploit Modules Related To CVE-2002-0639
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