| Vulnerability Name: | CVE-2020-7460 (CCN-186374) |
| Assigned: | 2020-08-06 |
| Published: | 2020-08-06 |
| Updated: | 2022-07-01 |
| Summary: | In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.
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| CVSS v3 Severity: | 7.0 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.1 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)| Exploitability Metrics: | Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None | | Scope: | Scope (S): Unchanged
| | Impact Metrics: | Confidentiality (C): High
Integrity (I): High
Availibility (A): High |
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)| Exploitability Metrics: | Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None | | Scope: | Scope (S): Changed
| | Impact Metrics: | Confidentiality (C): High
Integrity (I): High
Availibility (A): High |
|
| CVSS v2 Severity: | 4.4 Medium (CVSS v2 Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P)| Exploitability Metrics: | Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None | | Impact Metrics: | Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial |
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)| Exploitability Metrics: | Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
| | Impact Metrics: | Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete |
|
| Vulnerability Type: | CWE-367
|
| Vulnerability Consequences: | Gain Privileges |
| References: | Source: MITRE
Type: CNA
CVE-2020-7460
Source: XF
Type: UNKNOWN
freebsd-cve20207460-priv-esc(186374)
Source: MISC
Type: Vendor Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:23.sendmsg.asc
Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20200821-0005/
Source: CCN
Type: FreeBSD Security Advisory FreeBSD-SA-20:23.sendmsg
sendmsg(2) privilege escalation
Source: CCN
Type: ZDI-20-949
FreeBSD Kernel sendmsg System Call Time-Of-Check Time-Of-Use Privilege Escalation Vulnerability
Source: MISC
Type: Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-949/
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| Vulnerable Configuration: | Configuration 1:
cpe:/o:freebsd:freebsd:11.3:-:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p1:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p3:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:12.1:p1:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:12.1:-:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p4:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p5:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p6:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p10:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p11:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p7:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p8:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.3:p9:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.4:-:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:12.1:p3:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:12.1:p4:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:12.1:p6:*:*:*:*:*:*OR cpe:/o:freebsd:freebsd:12.1:p7:*:*:*:*:*:*
Configuration CCN 1:
cpe:/o:freebsd:freebsd:*:*:*:*:*:*:*:*
 Denotes that component is vulnerable |
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