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Vulnerability Details : CVE-2002-0639

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 : 2016-10-18
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- CVSS Scores & Vulnerability Types

CVSS Score
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 None
Vulnerability Type(s) Execute CodeOverflow
CWE ID CWE id is not defined for this vulnerability

- 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:
Source: Redhat

- Products Affected By CVE-2002-0639

# Product Type Vendor Product Version Update Edition Language
1 Application Openbsd Openssh 1.2.2 * * * Version Details Vulnerabilities
2 Application Openbsd Openssh 1.2.3 * * * Version Details Vulnerabilities
3 Application Openbsd Openssh 2.1 * * * Version Details Vulnerabilities
4 Application Openbsd Openssh 2.1.1 * * * Version Details Vulnerabilities
5 Application Openbsd Openssh 2.2 * * * Version Details Vulnerabilities
6 Application Openbsd Openssh 2.3 * * * Version Details Vulnerabilities
7 Application Openbsd Openssh 2.5 * * * Version Details Vulnerabilities
8 Application Openbsd Openssh 2.5.1 * * * Version Details Vulnerabilities
9 Application Openbsd Openssh 2.5.2 * * * Version Details Vulnerabilities
10 Application Openbsd Openssh 2.9 * * * Version Details Vulnerabilities
11 Application Openbsd Openssh 2.9p1 * * * Version Details Vulnerabilities
12 Application Openbsd Openssh 2.9p2 * * * Version Details Vulnerabilities
13 Application Openbsd Openssh 2.9.9 * * * Version Details Vulnerabilities
14 Application Openbsd Openssh 3.0p1 * * * Version Details Vulnerabilities
15 Application Openbsd Openssh 3.0 * * * Version Details Vulnerabilities
16 Application Openbsd Openssh 3.0.1 * * * Version Details Vulnerabilities
17 Application Openbsd Openssh 3.0.1p1 * * * Version Details Vulnerabilities
18 Application Openbsd Openssh 3.0.2 * * * Version Details Vulnerabilities
19 Application Openbsd Openssh 3.0.2p1 * * * Version Details Vulnerabilities
20 Application Openbsd Openssh 3.1 * * * Version Details Vulnerabilities
21 Application Openbsd Openssh 3.1p1 * * * Version Details Vulnerabilities
22 Application Openbsd Openssh 3.2 * * * Version Details Vulnerabilities
23 Application Openbsd Openssh 3.2.2p1 * * * Version Details Vulnerabilities
24 Application Openbsd Openssh 3.2.3p1 * * * Version Details Vulnerabilities
25 Application Openbsd Openssh 3.3 * * * Version Details Vulnerabilities
26 Application Openbsd Openssh 3.3p1 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Openbsd Openssh 26

- References For CVE-2002-0639
BID 5093 OpenSSH Challenge-Response Buffer Overflow Vulnerabilities Release Date:2007-11-05
XF openssh-challenge-response-bo(9169)
OSVDB 6245
BUGTRAQ 20020626 OpenSSH Security Advisory (adv.iss)
BUGTRAQ 20020626 Revised OpenSSH Security Advisory (adv.iss)
HP HPSBUX0206-195
ENGARDE ESA-20020702-016
BUGTRAQ 20020626 [OpenPKG-SA-2002.005] OpenPKG Security Advisory (openssh)
CALDERA CSSA-2002-030.0
CERT-VN VU#369347
CERT CA-2002-18
BUGTRAQ 20020627 How to reproduce OpenSSH Overflow.
ISS 20020626 OpenSSH Remote Challenge Vulnerability

- Metasploit Modules Related To CVE-2002-0639

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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