CVE-2017-5992: XEE
First published: Wed Feb 15 2017(Updated: )
Openpyxl 2.4.1 resolves external entities by default, which allows remote attackers to conduct XXE attacks via a crafted .xlsx document.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Python Openpyxl | =2.4.1 | |
| pip/openpyxl | <=2.4.1 | 2.4.2 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2017/02/07/5
- https://bitbucket.org/openpyxl/openpyxl/commits/3b4905f428e1
- https://bitbucket.org/openpyxl/openpyxl/issues/749
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854442
- https://nvd.nist.gov/vuln/detail/CVE-2017-5992
- https://foss.heptapod.net/openpyxl/openpyxl/-/commit/7fe678fd89fd
- https://foss.heptapod.net/openpyxl/openpyxl/-/issues/749
- https://github.com/advisories/GHSA-chqf-hx79-gxc6 (Advisory)
- https://github.com/pypa/advisory-database/tree/main/vulns/openpyxl/PYSEC-2017-48.yaml
Frequently Asked Questions
What is the severity of CVE-2017-5992?
CVE-2017-5992 is considered a moderate severity vulnerability due to its potential for XXE attacks.
How do I fix CVE-2017-5992?
To fix CVE-2017-5992, upgrade Openpyxl to version 2.4.2 or later.
What is the impact of CVE-2017-5992 on Openpyxl users?
CVE-2017-5992 allows attackers to exploit XML external entities through manipulated .xlsx files.
Who is affected by CVE-2017-5992?
Users of Openpyxl version 2.4.1 are directly affected by CVE-2017-5992.
What types of attacks can CVE-2017-5992 facilitate?
CVE-2017-5992 can facilitate XML External Entity (XXE) attacks, leading to data exfiltration or denial of service.
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