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CVE-2017-1000367

CWE-362Published: June 5, 2017· Updated: Jun 17, 2026

6.4

CVSS v3.1

Official Description

Todd Miller's sudo version 1.8.20 and earlier is vulnerable to an input validation (embedded spaces) in the get_process_ttyname() function resulting in information disclosure and command execution.

Technical Analysis

CVE-2017-1000367 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.4.

A proof-of-concept (PoC) exploit exists for CVE-2017-1000367. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges Req.High

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

sudo_project1 product(s)

sudo

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2017-05/msg00077.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2017-05/msg00078.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2017-05/msg00079.html

ADVISORYhttp://packetstormsecurity.com/files/142783/Sudo-get_process_ttyname-Race-Condition.html

ADVISORYhttp://seclists.org/fulldisclosure/2017/Jun/3

ADVISORYhttp://www.debian.org/security/2017/dsa-3867

ADVISORYhttp://www.openwall.com/lists/oss-security/2017/05/30/16

ADVISORYhttp://www.securityfocus.com/bid/98745

ADVISORYhttp://www.securitytracker.com/id/1038582

ADVISORYhttp://www.ubuntu.com/usn/USN-3304-1

ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1381

ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1382

ADVISORYhttps://security.gentoo.org/glsa/201705-15

ADVISORYhttps://www.exploit-db.com/exploits/42183/

ADVISORYhttps://www.sudo.ws/alerts/linux_tty.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2017-05/msg00077.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2017-05/msg00078.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2017-05/msg00079.html

ADVISORYhttp://packetstormsecurity.com/files/142783/Sudo-get_process_ttyname-Race-Condition.html

ADVISORYhttp://seclists.org/fulldisclosure/2017/Jun/3

ADVISORYhttp://www.debian.org/security/2017/dsa-3867

ADVISORYhttp://www.openwall.com/lists/oss-security/2017/05/30/16

ADVISORYhttp://www.securityfocus.com/bid/98745

ADVISORYhttp://www.securitytracker.com/id/1038582

ADVISORYhttp://www.ubuntu.com/usn/USN-3304-1

ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1381

ADVISORYhttps://access.redhat.com/errata/RHSA-2017:1382

ADVISORYhttps://security.gentoo.org/glsa/201705-15

ADVISORYhttps://www.exploit-db.com/exploits/42183/

ADVISORYhttps://www.sudo.ws/alerts/linux_tty.html

All References (36)

→

http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00077.htmlThird Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00078.htmlThird Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00079.htmlThird Party Advisory

→

http://packetstormsecurity.com/files/142783/Sudo-get_process_ttyname-Race-Condition.htmlExploit · Third Party Advisory · VDB Entry

→

http://seclists.org/fulldisclosure/2017/Jun/3Mailing List · Third Party Advisory

→

http://www.debian.org/security/2017/dsa-3867Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2017/05/30/16Exploit · Mailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2022/12/22/5

→

http://www.openwall.com/lists/oss-security/2022/12/22/6

→

http://www.securityfocus.com/bid/98745Third Party Advisory · VDB Entry

→

http://www.securitytracker.com/id/1038582Exploit · Third Party Advisory · VDB Entry

→

http://www.ubuntu.com/usn/USN-3304-1Third Party Advisory

→

https://access.redhat.com/errata/RHSA-2017:1381Third Party Advisory

→

https://access.redhat.com/errata/RHSA-2017:1382Third Party Advisory

→

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VXEXC4NNIG2QOZY6N2YUK246KI3D3UQO/

Quick Facts

CVE IDCVE-2017-1000367

CVSS Score6.4 / 10

SeverityMEDIUM

WeaknessCWE-362

CISA KEVNo

ExploitPOC

Affected1 vendor(s)

PublishedJun 5, 2017

Related CVEs (CWE-362)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2017-1000367 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.

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