What’s Vulnerable › Vulnerabilities

CVE-2003-1562

• Severity: high (CVSS 7.6 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2003-12-31 · updated 2026-06-16
• Weakness: CWE-362

Description

sshd in OpenSSH 3.6.1p2 and earlier, when PermitRootLogin is disabled and using PAM keyboard-interactive authentication, does not insert a delay after a root login attempt with the correct password, which makes it easier for remote attackers to use timing differences to determine if the password step of a multi-step authentication is successful, a different vulnerability than CVE-2003-0190.

Affected products

• OpenSSH: 1.2, 1.2.1, 1.2.2, 1.2.3, 1.2.27, 1.3 (+39)

References

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=248747
• http://www.securityfocus.com/archive/1/320153
• http://www.securityfocus.com/archive/1/320302
• http://www.securityfocus.com/archive/1/320440
• http://www.securityfocus.com/bid/7482
• https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=248747
• http://www.securityfocus.com/archive/1/320153
• http://www.securityfocus.com/archive/1/320302
• http://www.securityfocus.com/archive/1/320440
• http://www.securityfocus.com/bid/7482
• https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

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