// For flags

CVE-2020-27858

Arcserve D2D getNews XML External Entity Processing Information Disclosure Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This vulnerability allows remote attackers to disclose sensitive information on affected installations of CA Arcserve D2D 16.5. Authentication is not required to exploit this vulnerability. The specific flaw exists within the getNews method. Due to the improper restriction of XML External Entity (XXE) references, a specially-crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM. Was ZDI-CAN-11103.

Esta vulnerabilidad permite a atacantes remotos divulgar información confidencial sobre las instalaciones afectadas de CA Arcserve D2D versión 16.5. No es requerida una autenticación para explotar esta vulnerabilidad. El fallo específico se presenta dentro del método getNews. Debido a una restricción inapropiada de las referencias de XML External Entity (XXE), un documento especialmente diseñado que especifica un URI causa que el analizador XML acceda al URI e inserte el contenido en el documento XML para su posterior procesamiento. Un atacante puede aprovechar esta vulnerabilidad para revelar información en el contexto de SYSTEM. Fue ZDI-CAN-11103

This vulnerability allows remote attackers to disclose sensitive information on affected installations of CA Arcserve D2D. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the getNews method. Due to the improper restriction of XML External Entity (XXE) references, a specially-crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM.

*Credits: rgod
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-10-27 CVE Reserved
  • 2020-12-04 CVE Published
  • 2024-05-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-611: Improper Restriction of XML External Entity Reference
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Arcserve
Search vendor "Arcserve"
D2d
Search vendor "Arcserve" for product "D2d"
16.5
Search vendor "Arcserve" for product "D2d" and version "16.5"
-
Affected