CVE-2020-27863

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  2. Vulnerabilities (CVE)
  3. CVE-2020-27863
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of D-Link DVA-2800 and DSL-2888A routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-10912.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

3.3 /10

CVSS v2.0 : LOW

V2 Legend

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

Exploitability : 6.5 / Impact : 2.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10196 Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1427/ Third Party Advisory VDB Entry
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:dlink:dva-2800_firmware:2.30_au:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dva-2800:revision_t:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:dlink:dsl-2888a_firmware:2.30_au:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dsl-2888a:revision_t:*:*:*:*:*:*:*
History

12 Mar 2021, 15:15

Type Values Removed Values Added
Summary This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of D-Link DVA-2800 and DSL-2888A routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-10912. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of D-Link DVA-2800 and DSL-2888A routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-10912.

12 Mar 2021, 14:15

Type Values Removed Values Added
CWE CWE-287 CWE-288
Summary This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of D-Link DVA-2800 and DSL-2888A firmware version 2.3 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-10912. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of D-Link DVA-2800 and DSL-2888A routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-10912.

16 Feb 2021, 19:11

Type Values Removed Values Added
CWE CWE-287
CPE cpe:2.3:o:dlink:dsl-2888a_firmware:2.30_au:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dva-2800_firmware:2.30_au:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dsl-2888a:revision_t:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dva-2800:revision_t:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 3.3
v3 : 6.5
References (MISC) https://www.zerodayinitiative.com/advisories/ZDI-20-1427/ - (MISC) https://www.zerodayinitiative.com/advisories/ZDI-20-1427/ - Third Party Advisory, VDB Entry
References (MISC) https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10196 - (MISC) https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10196 - Vendor Advisory

12 Feb 2021, 00:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-02-12 00:15

Updated : 2023-12-10 13:41

NVD link : CVE-2020-27863

Mitre link : CVE-2020-27863

CVE.ORG link : CVE-2020-27863

JSON object : View

Products Affected

dlink

  • dva-2800
  • dsl-2888a_firmware
  • dsl-2888a
  • dva-2800_firmware
CWE
CWE-288

Authentication Bypass Using an Alternate Path or Channel

CWE-287

Improper Authentication