Description
http.cookiejar.DefaultPolicy.domain_return_ok in Lib/http/cookiejar.py in Python before 3.7.3 does not correctly validate the domain: it can be tricked into sending existing cookies to the wrong server. An attacker may abuse this flaw by using a server with a hostname that has another valid hostname as a suffix (e.g., pythonicexample.com to steal cookies for example.com). When a program uses http.cookiejar.DefaultPolicy and tries to do an HTTP connection to an attacker-controlled server, existing cookies can be leaked to the attacker. This affects 2.x through 2.7.16, 3.x before 3.4.10, 3.5.x before 3.5.7, 3.6.x before 3.6.9, and 3.7.x before 3.7.3.
No analysis available yet.
Remediation
No remediation available yet.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-1889-1 | python3.4 security update |
Debian DLA |
DLA-1906-1 | python2.7 security update |
Debian DLA |
DLA-2280-1 | python3.5 security update |
Debian DLA |
DLA-2337-1 | python2.7 security update |
EUVD |
EUVD-2018-13392 | http.cookiejar.DefaultPolicy.domain_return_ok in Lib/http/cookiejar.py in Python before 3.7.3 does not correctly validate the domain: it can be tricked into sending existing cookies to the wrong server. An attacker may abuse this flaw by using a server with a hostname that has another valid hostname as a suffix (e.g., pythonicexample.com to steal cookies for example.com). When a program uses http.cookiejar.DefaultPolicy and tries to do an HTTP connection to an attacker-controlled server, existing cookies can be leaked to the attacker. This affects 2.x through 2.7.16, 3.x before 3.4.10, 3.5.x before 3.5.7, 3.6.x before 3.6.9, and 3.7.x before 3.7.3. |
Ubuntu USN |
USN-4127-1 | Python vulnerabilities |
Ubuntu USN |
USN-4127-2 | Python vulnerabilities |
Ubuntu USN |
USN-6891-1 | Python vulnerabilities |
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-05T12:12:29.756Z
Reserved: 2019-07-13T00:00:00.000Z
Link: CVE-2018-20852
No data.
Status : Modified
Published: 2019-07-13T21:15:10.377
Modified: 2024-11-21T04:02:18.780
Link: CVE-2018-20852
OpenCVE Enrichment
No data.
Weaknesses
Debian DLA
EUVD
Ubuntu USN