CVE-2018-19791
Severity Score
6.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 does not correctly handle requests for byte sequences, allowing an attacker to amplify the response size by requesting the entire response body repeatedly, as demonstrated by an HTTP Range header value beginning with the "bytes=0-,0-" substring.
El servidor en LiteSpeed OpenLiteSpeed en versiones anteriores a la 1.5.0 RC6 no manipula correctamente las peticiones para secuencias de bytes, permitiendo a un atacante que amplíe el tamaño de la respuesta al solicitar el cuerpo completo de la respuesta de manera repetida, tal y como queda demostrado con con un valor de cabecera HTTP Range que empieza por la subcadena "bytes=0-,0-".
*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
- 2018-12-03 CVE Reserved
- 2018-12-03 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-05 CVE Updated
- 2024-08-05 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-20: Improper Input Validation
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/litespeedtech/openlitespeed/issues/117 | 2024-08-05 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Litespeedtech Search vendor "Litespeedtech" | Openlitespeed Search vendor "Litespeedtech" for product "Openlitespeed" | < 1.5.0 Search vendor "Litespeedtech" for product "Openlitespeed" and version " < 1.5.0" | - |
Affected
| ||||||
| Litespeedtech Search vendor "Litespeedtech" | Openlitespeed Search vendor "Litespeedtech" for product "Openlitespeed" | 1.5.0 Search vendor "Litespeedtech" for product "Openlitespeed" and version "1.5.0" | - |
Affected
| ||||||
| Litespeedtech Search vendor "Litespeedtech" | Openlitespeed Search vendor "Litespeedtech" for product "Openlitespeed" | 1.5.0 Search vendor "Litespeedtech" for product "Openlitespeed" and version "1.5.0" | rc1 |
Affected
| ||||||
| Litespeedtech Search vendor "Litespeedtech" | Openlitespeed Search vendor "Litespeedtech" for product "Openlitespeed" | 1.5.0 Search vendor "Litespeedtech" for product "Openlitespeed" and version "1.5.0" | rc2 |
Affected
| ||||||
| Litespeedtech Search vendor "Litespeedtech" | Openlitespeed Search vendor "Litespeedtech" for product "Openlitespeed" | 1.5.0 Search vendor "Litespeedtech" for product "Openlitespeed" and version "1.5.0" | rc3 |
Affected
| ||||||
| Litespeedtech Search vendor "Litespeedtech" | Openlitespeed Search vendor "Litespeedtech" for product "Openlitespeed" | 1.5.0 Search vendor "Litespeedtech" for product "Openlitespeed" and version "1.5.0" | rc4 |
Affected
| ||||||
| Litespeedtech Search vendor "Litespeedtech" | Openlitespeed Search vendor "Litespeedtech" for product "Openlitespeed" | 1.5.0 Search vendor "Litespeedtech" for product "Openlitespeed" and version "1.5.0" | rc5 |
Affected
| ||||||