BSD 2.0.4/2.1/4.4/6.2 Asynchronous I/O ioctl/fcntl Process ID credentials management
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
3.8 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, has been found in BSD 2.0.4/2.1/4.4/6.2. This issue affects the function ioctl/fcntl
of the component Asynchronous I/O Handler. The manipulation as part of a Process ID leads to a credentials management vulnerability. Using CWE to declare the problem leads to CWE-255. Impacted is availability. The summary by CVE is:
the asynchronous i/o facility in 4.4 bsd kernel does not check user credentials when setting the recipient of i/o notification which allows local users to cause a denial of service by using certain ioctl and fcntl calls to cause the signal to be sent to an arbitrary process id.
The weakness was shared 09/15/1997 by Alan Peakall (Website). It is possible to read the advisory at openbsd.com. The identification of this vulnerability is CVE-1999-1214. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at X-Force (556).
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.0VulDB Meta Temp Score: 3.8
VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
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Exploiting
Class: Credentials managementCWE: CWE-255
ATT&CK: T1552
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
09/15/1997 🔍09/15/1997 🔍
04/09/2004 🔍
06/18/2014 🔍
05/19/2018 🔍
Sources
Advisory: openbsd.comResearcher: Alan Peakall
Status: Not defined
CVE: CVE-1999-1214 (🔍)
X-Force: 556
OSVDB: 11062 - Multiple BSD Kernel Asynchronous I/O Facility Notification DoS
Entry
Created: 06/18/2014 16:14Updated: 05/19/2018 09:51
Changes: 06/18/2014 16:14 (43), 05/19/2018 09:51 (9)
Complete: 🔍
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