CVE-2022-27255

In Realtek eCos RSDK 1.5.7p1 and MSDK 4.9.4p1, the SIP ALG function that rewrites SDP data has a stack-based buffer overflow. This allows an attacker to remotely execute code without authentication via a crafted SIP packet that contains malicious SDP data.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://forum.defcon.org/node/241835	Third Party Advisory
https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2022-27255.pdf	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:h:realtek:ecos_rsdk:-:*:*:*:*:*:*:*

cpe:2.3:o:realtek:ecos_rsdk_firmware:1.5.7p1:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:h:realtek:ecos_msdk:-:*:*:*:*:*:*:*

cpe:2.3:o:realtek:ecos_msdk_firmware:4.9.4p1:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-08-01 12:15

Updated : 2022-09-30 19:49

NVD link : CVE-2022-27255

Mitre link : CVE-2022-27255

CVE.ORG link : CVE-2022-27255

JSON object : View

Products Affected

realtek

ecos_msdk_firmware
ecos_rsdk_firmware
ecos_msdk
ecos_rsdk

CWE

CWE-20

Improper Input Validation

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9.8 /10