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Vulnerability record · CVE-2005-1831 · published 31 May 2005

CVE-2005-1831: Todd miller sudo vulnerability

Todd Miller · Sudo

Sudo 1.6.8p7 on SuSE Linux 9.3, and possibly other Linux distributions, allows local users to gain privileges by using sudo to call su, then entering a blank password and hitting CTRL-C. NOTE: SuSE and multiple third-party researchers have not been able to replicate this issue, stating "Sudo catches SIGINT and returns an empty string for the password so I don't see how this could happen unless the user's actual password was empty.

8.4 CVSS 3.1 High EPSS 0.40% · top 67.7%
8.4CVSS 3.1 base score, v2 7.2
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
16 Jun 2026Last modified by NVD

Description

Sudo 1.6.8p7 on SuSE Linux 9.3, and possibly other Linux distributions, allows local users to gain privileges by using sudo to call su, then entering a blank password and hitting CTRL-C. NOTE: SuSE and multiple third-party researchers have not been able to replicate this issue, stating "Sudo catches SIGINT and returns an empty string for the password so I don't see how this could happen unless the user's actual password was empty.

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/bugtraq/2005-05/0349.html
http://archives.neohapsis.com/archives/bugtraq/2005-05/0359.html
http://marc.info/?l=bugtraq&m=111755694008928&w=2
http://www.osvdb.org/20417
http://archives.neohapsis.com/archives/bugtraq/2005-05/0349.html
http://archives.neohapsis.com/archives/bugtraq/2005-05/0359.html
http://marc.info/?l=bugtraq&m=111755694008928&w=2
http://www.osvdb.org/20417

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.2CVE-2012-2337Todd miller sudo permissions and access controls vulnerabilitysudo 1.6.x and 1.7.x before 1.7.9p1, and 1.8.x before 1.8.4p5, does not properly support configurations that use a netmask syntax, which allows local…EPSS 0.40%7.2CVE-2012-0809Todd miller sudo vulnerabilityFormat string vulnerability in the sudo_debug function in Sudo 1.8.0 through 1.8.3p1 allows local users to execute arbitrary code via format string s…EPSS 2.9%7.2CVE-2007-3149Mit kerberos 5 vulnerabilitysudo, when linked with MIT Kerberos 5 (krb5), does not properly check whether a user can currently authenticate to Kerberos, which allows local users…EPSS 0.36%7.2CVE-2006-0151Todd miller sudo vulnerabilitysudo 1.6.8 and other versions does not clear the PYTHONINSPECT environment variable, which allows limited local users to gain privileges via a Python…EPSS 0.61%7.2CVE-2004-1051Mandrakesoft mandrake multi network firewall vulnerabilitysudo before 1.6.8p2 allows local users to execute arbitrary commands by using "()" style environment variables to create functions that have the same…EPSS 1.4%7.2CVE-2002-0043Todd miller sudo vulnerabilitysudo 1.6.0 through 1.6.3p7 does not properly clear the environment before calling the mail program, which could allow local users to gain root privil…EPSS 0.93%7.2CVE-1999-0958Todd miller sudo vulnerabilitysudo 1.5.x allows local users to execute arbitrary commands via a .. (dot dot) attack.EPSS 0.43%7.0CVE-2016-7032Todd miller sudo improper access control vulnerabilitysudo_noexec.so in Sudo before 1.8.15 on Linux might allow local users to bypass intended noexec command restrictions via an application that calls th…EPSS 0.34%

Source: NIST National Vulnerability Database (record CVE-2005-1831), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.