sudo 1.6.x before 1.6.9p21, when the runas_default option is used, does not properly set…
Priority LOW 21CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
Summary
sudo 1.6.x before 1.6.9p21, when the runas_default option is used, does not properly set group memberships, which allows local users to gain privileges via a sudo command.
Why it matters now
EPSS 0.00462 40th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 28
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:todd_miller:sudo:1.6:*:*:*:*:*:*:* | 1.6 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.1:*:*:*:*:*:*:* | 1.6.1 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.2:*:*:*:*:*:*:* | 1.6.2 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.3:*:*:*:*:*:*:* | 1.6.3 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.3_p1:*:*:*:*:*:*:* | 1.6.3_p1 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.3_p2:*:*:*:*:*:*:* | 1.6.3_p2 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.3_p3:*:*:*:*:*:*:* | 1.6.3_p3 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.3_p4:*:*:*:*:*:*:* | 1.6.3_p4 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.3_p5:*:*:*:*:*:*:* | 1.6.3_p5 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.3_p6:*:*:*:*:*:*:* | 1.6.3_p6 | Vulnerable | Todd Miller |
- cpe:2.3:a:todd_miller:sudo:1.6:*:*:*:*:*:*:* Versions 1.6 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.1:*:*:*:*:*:*:* Versions 1.6.1 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.2:*:*:*:*:*:*:* Versions 1.6.2 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.3:*:*:*:*:*:*:* Versions 1.6.3 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.3_p1:*:*:*:*:*:*:* Versions 1.6.3_p1 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.3_p2:*:*:*:*:*:*:* Versions 1.6.3_p2 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.3_p3:*:*:*:*:*:*:* Versions 1.6.3_p3 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.3_p4:*:*:*:*:*:*:* Versions 1.6.3_p4 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.3_p5:*:*:*:*:*:*:* Versions 1.6.3_p5 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.3_p6:*:*:*:*:*:*:* Versions 1.6.3_p6 Vulnerable ·Todd Miller
Show 18 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:todd_miller:sudo:1.6.3_p7:*:*:*:*:*:*:* | 1.6.3_p7 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.4_p1:*:*:*:*:*:*:* | 1.6.4_p1 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.4_p2:*:*:*:*:*:*:* | 1.6.4_p2 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.5:*:*:*:*:*:*:* | 1.6.5 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.5_p1:*:*:*:*:*:*:* | 1.6.5_p1 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.5_p2:*:*:*:*:*:*:* | 1.6.5_p2 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.6:*:*:*:*:*:*:* | 1.6.6 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.7:*:*:*:*:*:*:* | 1.6.7 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.7_p5:*:*:*:*:*:*:* | 1.6.7_p5 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.8:*:*:*:*:*:*:* | 1.6.8 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.8_p1:*:*:*:*:*:*:* | 1.6.8_p1 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.8_p5:*:*:*:*:*:*:* | 1.6.8_p5 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.8_p8:*:*:*:*:*:*:* | 1.6.8_p8 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.8_p9:*:*:*:*:*:*:* | 1.6.8_p9 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.8_p12:*:*:*:*:*:*:* | 1.6.8_p12 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.9_p17:*:*:*:*:*:*:* | 1.6.9_p17 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.9_p18:*:*:*:*:*:*:* | 1.6.9_p18 | Vulnerable | Todd Miller |
| cpe:2.3:a:todd_miller:sudo:1.6.9_p19:*:*:*:*:*:*:* | 1.6.9_p19 | Vulnerable | Todd Miller |
- cpe:2.3:a:todd_miller:sudo:1.6.3_p7:*:*:*:*:*:*:* Versions 1.6.3_p7 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.4_p1:*:*:*:*:*:*:* Versions 1.6.4_p1 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.4_p2:*:*:*:*:*:*:* Versions 1.6.4_p2 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.5:*:*:*:*:*:*:* Versions 1.6.5 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.5_p1:*:*:*:*:*:*:* Versions 1.6.5_p1 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.5_p2:*:*:*:*:*:*:* Versions 1.6.5_p2 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.6:*:*:*:*:*:*:* Versions 1.6.6 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.7:*:*:*:*:*:*:* Versions 1.6.7 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.7_p5:*:*:*:*:*:*:* Versions 1.6.7_p5 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.8:*:*:*:*:*:*:* Versions 1.6.8 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.8_p1:*:*:*:*:*:*:* Versions 1.6.8_p1 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.8_p5:*:*:*:*:*:*:* Versions 1.6.8_p5 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.8_p8:*:*:*:*:*:*:* Versions 1.6.8_p8 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.8_p9:*:*:*:*:*:*:* Versions 1.6.8_p9 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.8_p12:*:*:*:*:*:*:* Versions 1.6.8_p12 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.9_p17:*:*:*:*:*:*:* Versions 1.6.9_p17 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.9_p18:*:*:*:*:*:*:* Versions 1.6.9_p18 Vulnerable ·Todd Miller
- cpe:2.3:a:todd_miller:sudo:1.6.9_p19:*:*:*:*:*:*:* Versions 1.6.9_p19 Vulnerable ·Todd Miller
Remediation
Red Hat 1 advisory
- RHSA-2010:0122 Released 2010-02-26 · Red Hat rating Importantsudo security update
- Red Hat Enterprise Linux (v. 5 server) sudo-1.6.9p17-6.el5_4, sudo-1.6.9p17-6.el5_4.i386, sudo-1.6.9p17-6.el5_4.ia64 +1
- Red Hat Enterprise Linux Desktop (v. 5 client) sudo-1.6.9p17-6.el5_4, sudo-1.6.9p17-6.el5_4.i386
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2010:0122 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2010:0122 |
Timeline
- 2026-10-02 Threatist record created from CVE-2010-0427
- 2026-10-03 Alias added: GHSA-fvmp-m2wj-xqp8
References
Other 9
- http://sudo.ws/repos/sudo/rev/aa0b6c01c462
- oval:org.mitre.oval:def:10946
- https://bugzilla.redhat.com/show_bug.cgi?id=567622
- oval:org.mitre.oval:def:7216
- http://wiki.rpath.com/Advisories:rPSA-2010-0075
- [oss-security] 20100223 CVE assignment notification -- CVE-2010-0427 -- sudo fails to reset group permissions if runas_default set
- [oss-security] 20100224 Re: CVE assignment notification -- CVE-2010-0427 -- sudo fails to reset group permissions if runas_default set
- http://www.sudo.ws/cgi-bin/cvsweb/sudo/set_perms.c.diff?r1=1.30.2.7&r2=1.30.2.8
- http://www.gratisoft.us/bugzilla/show_bug.cgi?id=349
More Todd Miller Sudo vulnerabilities
- TI-2005-01738 Sudo 1.6.8p7 on SuSE Linux 9.3, and possibly other Linux distributions, allows local… CVSS 3.1HIGH 8.4
- TI-2012-00746 Format string vulnerability in the sudo_debug function in Sudo 1.8.0 through 1.8.3p1… CVSS 2.0HIGH 7.2
- TI-2013-01562 sudo 1.6.0 through 1.7.10p6 and sudo 1.8.0 through 1.8.6p6 allows local users or… CVSS 2.0MEDIUM 6.9
- TI-2004-00948 sudo before 1.6.8p2 allows local users to execute arbitrary commands by using "()" style… CVSS 2.0HIGH 7.2
- TI-2010-00404 sudo 1.6.x before 1.6.9p21 and 1.7.x before 1.7.2p4, when a pseudo-command is enabled… CVSS 2.0MEDIUM 6.9
- TI-2006-00144 sudo 1.6.8 and other versions does not clear the PYTHONINSPECT environment variable… CVSS 2.0HIGH 7.2
Sources
- CVE-2010-0427 · CVE Program
- CVE-2010-0427 · NVD
- FIRST EPSS
- GHSA-fvmp-m2wj-xqp8 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-0427 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences