CVE-2021-28375

An issue was discovered in the Linux kernel through 5.11.6. fastrpc_internal_invoke in drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages, aka CID-20c40794eb85. This is a related issue to CVE-2019-2308.

Summary:

Reference Links(if available):

https://lore.kernel.org/stable/[email protected]/

https://git.kernel.org/linus/20c40794eb85ea29852d7bc37c55713802a543d6

https://lists.fedoraproject.org/archives/list/[email protected]/message/OMRQVOTASD3VZP6GE4JJHE27QU6FHTZ6/

https://lists.fedoraproject.org/archives/list/[email protected]/message/TJPVQZPY3DHPV5I3IVNMSMO6D3PKZISX/

https://lists.fedoraproject.org/archives/list/[email protected]/message/XAUNYDTGE6MB4NWL2SIHPCODCLET3JZB/

CVSS Score (if available)

v2: / MEDIUMAV:L/AC:L/Au:N/C:C/I:C/A:C

v3: / HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Links to Exploits(if available)

Tags: CVE, CVE-2021-28375, Mailing List, MISC, vulnerability

CVE-2021-28375

Summary:

Reference Links(if available):

CVSS Score (if available)

Links to Exploits(if available)

Cobalt Strike Beacon Detected – 101[.]36[.]117[.]41:8880

Cobalt Strike Beacon Detected – 47[.]242[.]206[.]77:8888

Cobalt Strike Beacon Detected – 148[.]135[.]127[.]214:81

Cobalt Strike Beacon Detected – 192[.]74[.]226[.]179:8443

Cobalt Strike Beacon Detected – 180[.]184[.]42[.]11:8080

Summary:

Reference Links(if available):

CVSS Score (if available)

Links to Exploits(if available)

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Cobalt Strike Beacon Detected – 101[.]36[.]117[.]41:8880

Cobalt Strike Beacon Detected – 47[.]242[.]206[.]77:8888

Cobalt Strike Beacon Detected – 148[.]135[.]127[.]214:81

Cobalt Strike Beacon Detected – 192[.]74[.]226[.]179:8443

Cobalt Strike Beacon Detected – 180[.]184[.]42[.]11:8080