CVE-2020-28877

Description

Buffer overflow in in the copy_msg_element function for the devDiscoverHandle server in the TP-Link WR and WDR series, including WDR7400, WDR7500, WDR7660, WDR7800, WDR8400, WDR8500, WDR8600, WDR8620, WDR8640, WDR8660, WR880N, WR886N, WR890N, WR890N, WR882N, and WR708N.

Related CPE's

otp-linkwdr7400_firmware-*******

vulnerable

htp-linkwdr7400-*******

otp-linkwdr7500_firmware-*******

vulnerable

htp-linkwdr7500-*******

otp-linkwdr7660_firmware-*******

vulnerable

htp-linkwdr7660-*******

otp-linkwdr7800_firmware-*******

vulnerable

htp-linkwdr7800-*******

otp-linkwdr8400_firmware-*******

vulnerable

htp-linkwdr8400-*******

References

https://github.com/peanuts62/TP-Link-poc

Broken Link

https://exchange.xforce.ibmcloud.com/vulnerabilities/192112

Third Party Advisory

CvssV3 impact

BaseSeverity

CRITICAL

ConfidentialityImpact

HIGH

AttackComplexity

LOW

Scope

UNCHANGED

AttackVector

NETWORK

AvailabilityImpact

HIGH

IntegrityImpact

HIGH

PrivilegesRequired

NONE

BaseScore

9.8

VectorString

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

Version

3.1

UserInteraction

NONE

CvssV2 impact

AccessComplexity

LOW

ConfidentialityImpact

PARTIAL

AvailabilityImpact

PARTIAL

IntegrityImpact

PARTIAL

BaseScore

7.5

VectorString

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

Version

2.0

AccessVector

NETWORK

Authentication

NONE