Information disclosure via unvalidated memcached keys
Published Jun 3, 2020 · Updated Aug 4, 2024
Information disclosure in Django 2.2 before 2.2.13 and 3.0 before 3.0.7 allows remote attackers to read cached data. The memcached backend passes malformed keys to nonvalidating drivers without checking them, desynchronizing requests and responses so later lookups can return another key's value. Exploitation requires attacker-controlled cache-key content, a nonvalidating memcached driver, and a later lookup of sensitive cached data.
Summary
What happened
Information disclosure in Django 2.2 before 2.2.13 and 3.0 before 3.0.7 allows remote attackers to read cached data. The memcached backend passes malformed keys to nonvalidating drivers without checking them, desynchronizing requests and responses so later lookups can return another key's value. Exploitation requires attacker-controlled cache-key content, a nonvalidating memcached driver, and a later lookup of sensitive cached data.
The record
- CVE
- CVE-2020-13254
- Published
- Jun 3, 2020
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-295, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 3, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Django CVE-2020-13254 vulnerability demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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