CVE-2021-35209
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An issue was discovered in ProxyServlet.java in the /proxy servlet in Zimbra Collaboration Suite 8.8 before 8.8.15 Patch 23 and 9.x before 9.0.0 Patch 16. The value of the X-Host header overwrites the value of the Host header in proxied requests. The value of X-Host header is not checked against the whitelist of hosts Zimbra is allowed to proxy to (the zimbraProxyAllowedDomains setting).
Se ha detectado un problema en el archivo ProxyServlet.java en el servlet /proxy en Zimbra Collaboration Suite versiones 8.8 anteriores a 8.8.15 Patch 23 y versiones 9.x anteriores a 9.0.0 Patch 16. El valor de la cabecera X-Host sobrescribe el valor de la cabecera Host en las peticiones proxy. El valor de la cabecera X-Host no es comprobado con la lista blanca de hosts a los que Zimbra tiene permitido hacer proxy (la configuración zimbraProxyAllowedDomains)
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-06-22 CVE Reserved
- 2021-07-02 CVE Published
- 2024-03-17 EPSS Updated
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-918: Server-Side Request Forgery (SSRF)
CAPEC
References (5)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://blog.sonarsource.com/zimbra-webmail-compromise-via-email | 2024-08-04 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://wiki.zimbra.com/wiki/Security_Center | 2021-09-20 | |
| https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23 | 2021-09-20 | |
| https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16 | 2021-09-20 | |
| https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories | 2021-09-20 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | >= 8.8 < 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version " >= 8.8 < 8.8.15" | - |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | - |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p1 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p10 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p11 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p12 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p13 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p14 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p15 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p16 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p17 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p18 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p19 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p2 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p3 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p4 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p5 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p6 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p7 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p8 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 8.8.15 Search vendor "Zimbra" for product "Collaboration" and version "8.8.15" | p9 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | - |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p1 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p10 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p11 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p12 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p2 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p3 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p4 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p5 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p6 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p7 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p8 |
Affected
| ||||||
| Zimbra Search vendor "Zimbra" | Collaboration Search vendor "Zimbra" for product "Collaboration" | 9.0.0 Search vendor "Zimbra" for product "Collaboration" and version "9.0.0" | p9 |
Affected
| ||||||