CVE-2021-33197
MEDIUMCVSS 5.3/10EPSS 2.26%
Last modified
CVE-2021-33197 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. In Go before 1.15.13 and 1.16.x before 1.16.5, some configurations of ReverseProxy (from net/http/httputil) result in a situation where an attacker is able to drop arbitrary headers.. EPSS estimates a 2.26% chance of exploitation in the next 30 days.
Description
In Go before 1.15.13 and 1.16.x before 1.16.5, some configurations of ReverseProxy (from net/http/httputil) result in a situation where an attacker is able to drop arbitrary headers.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Golang | Go | < 1.15.13 |
| Golang | Go | >= 1.16.0, < 1.16.5 |
References
- https://groups.google.com/g/golang-announceThird Party Advisory
- https://groups.google.com/g/golang-announce/c/RgCMkAEQjSIExploit, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202208-02Third Party Advisory
- https://groups.google.com/g/golang-announceThird Party Advisory
- https://groups.google.com/g/golang-announce/c/RgCMkAEQjSIExploit, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202208-02Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-33197?
In Go before 1.15.13 and 1.16.x before 1.16.5, some configurations of ReverseProxy (from net/http/httputil) result in a situation where an attacker is able to drop arbitrary headers.
How severe is CVE-2021-33197?
CVE-2021-33197 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 2.26% probability of exploitation in the next 30 days.
How do I fix CVE-2021-33197?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-33191From Apache NiFi MiNiFi C++ version 0.5.0 the c2 protocol im…9.8
- CVE-2021-33192A vulnerability in the HTML pages of Apache Jena Fuseki allo…6.1
- CVE-2021-33193A crafted method sent through HTTP/2 will bypass validation …7.5
- CVE-2021-33194golang.org/x/net before v0.0.0-20210520170846-37e1c6afe023 a…7.5
- CVE-2021-33195Go before 1.15.13 and 1.16.x before 1.16.5 has functions for…7.3
- CVE-2021-33196In archive/zip in Go before 1.15.13 and 1.16.x before 1.16.5…7.5
- CVE-2021-33198In Go before 1.15.13 and 1.16.x before 1.16.5, there can be …7.5
- CVE-2021-33199In Expression Engine before 6.0.3, addonIcon in Addons/file/…9.8
- CVE-2021-3320Type Confusion in 802154 ACK Frames Handling. Zephyr version…7.5
- CVE-2021-33200kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enf…7.8
- CVE-2021-33203Django before 2.2.24, 3.x before 3.1.12, and 3.2.x before 3.…4.9
- CVE-2021-33204In the pg_partman (aka PG Partition Manager) extension befor…9.8
Are you affected by CVE-2021-33197?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST