CVE-2019-9947
python: CRLF injection via the path part of the url passed to urlopen()
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r
(specifically in the path component of a URL that lacks a ? character) followed by an HTTP header or a Redis command. This is similar to the CVE-2019-9740 query string issue. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.
Se detectó un problema en urllib2 en Python versión 2.x hasta la versión 2.7.16 y urllib en Python versión 3.x hasta la versión 3.7.3. La inyección de CRLF es posible si el atacante controla un parámetro url, como lo demuestra el primer argumento de urllib.request.urlopen con \r
(específicamente en el componente path de una URL que carece de un carácter ?) Seguido por un encabezado HTTP o Un comando Redis. Esto se igual al CVE-2019-9740 problema con la cadena de consulta. Esto está corregido en las versiones: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-03-23 CVE Reserved
- 2019-03-23 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2024-09-22 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')
- CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
CAPEC
References (23)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2021/02/04/2 | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2019/06/msg00026.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20190404-0004 | Third Party Advisory |
|
| URL | Date | SRC |
|---|---|---|
| https://bugs.python.org/issue35906 | 2024-08-04 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Python Search vendor "Python" | Python Search vendor "Python" for product "Python" | >= 2.7.0 < 2.7.17 Search vendor "Python" for product "Python" and version " >= 2.7.0 < 2.7.17" | - |
Affected
| ||||||
| Python Search vendor "Python" | Python Search vendor "Python" for product "Python" | >= 3.5.0 < 3.5.8 Search vendor "Python" for product "Python" and version " >= 3.5.0 < 3.5.8" | - |
Affected
| ||||||
| Python Search vendor "Python" | Python Search vendor "Python" for product "Python" | >= 3.6.0 < 3.6.9 Search vendor "Python" for product "Python" and version " >= 3.6.0 < 3.6.9" | - |
Affected
| ||||||
| Python Search vendor "Python" | Python Search vendor "Python" for product "Python" | >= 3.7.0 < 3.7.4 Search vendor "Python" for product "Python" and version " >= 3.7.0 < 3.7.4" | - |
Affected
| ||||||