OpenDoas up to 6.8.2 TIOCSTI privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenDoas up to 6.8.2. It has been rated as critical. The affected element is an unknown function of the component TIOCSTI Handler. The manipulation leads to an unknown weakness. This vulnerability is uniquely identified as CVE-2023-28339. No exploit exists.

Detailsinfo

A vulnerability was found in OpenDoas up to 6.8.2 and classified as critical. This issue affects an unknown function of the component TIOCSTI Handler. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

OpenDoas through 6.8.2, when TIOCSTI is available, allows privilege escalation because of sharing a terminal with the original session. NOTE: TIOCSTI is unavailable in OpenBSD 6.0 and later, and can be made unavailable in the Linux kernel 6.2 and later.

The weakness was disclosed 03/14/2023 as 106. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-28339 since 03/14/2023. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-32037). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/14/2023 🔍
03/14/2023 +0 days 🔍
03/14/2023 +0 days 🔍
12/05/2025 +997 days 🔍

Sourcesinfo

Advisory: 106
Status: Confirmed

CVE: CVE-2023-28339 (🔍)
GCVE (CVE): GCVE-0-2023-28339
GCVE (VulDB): GCVE-100-223097
EUVD: 🔍

Entryinfo

Created: 03/14/2023 21:46
Updated: 12/05/2025 18:34
Changes: 03/14/2023 21:46 (36), 04/08/2023 08:53 (11), 12/05/2025 18:34 (15)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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