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CVE-2022-2880: net/http/httputil: ReverseProxy should not forward unparseable query parameters · Issue #54663 · golang/go

Requests forwarded by ReverseProxy include the raw query parameters from the inbound request, including unparseable parameters rejected by net/http. This could permit query parameter smuggling when a Go proxy forwards a parameter with an unparseable value. After fix, ReverseProxy sanitizes the query parameters in the forwarded query when the outbound request’s Form field is set after the ReverseProxy. Director function returns, indicating that the proxy has parsed the query parameters. Proxies which do not parse query parameters continue to forward the original query parameters unchanged.

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This was referenced

Sep 23, 2022

gopherbot pushed a commit that referenced this issue

Sep 28, 2022

…gling

Query parameter smuggling occurs when a proxy’s interpretation of query parameters differs from that of a downstream server. Change ReverseProxy to avoid forwarding ignored query parameters.

Remove unparsable query parameters from the outbound request

* if req.Form != nil after calling ReverseProxy.Director; and * before calling ReverseProxy.Rewrite.

This change preserves the existing behavior of forwarding the raw query untouched if a Director hook does not parse the query by calling Request.ParseForm (possibly indirectly).

Fixes #55843 For #54663 For CVE-2022-2880

Change-Id: If1621f6b0e73a49d79059dae9e6b256e0ff18ca9 Reviewed-on: https://go-review.googlesource.com/c/go/+/432976 Reviewed-by: Roland Shoemaker [email protected] Reviewed-by: Brad Fitzpatrick [email protected] TryBot-Result: Gopher Robot [email protected] Run-TryBot: Damien Neil [email protected] Reviewed-on: https://go-review.googlesource.com/c/go/+/433735 Reviewed-by: Dmitri Shuralyov [email protected] Reviewed-by: Dmitri Shuralyov [email protected]

gopherbot pushed a commit that referenced this issue

Sep 28, 2022

…gling

Query parameter smuggling occurs when a proxy’s interpretation of query parameters differs from that of a downstream server. Change ReverseProxy to avoid forwarding ignored query parameters.

Remove unparsable query parameters from the outbound request

* if req.Form != nil after calling ReverseProxy.Director; and * before calling ReverseProxy.Rewrite.

This change preserves the existing behavior of forwarding the raw query untouched if a Director hook does not parse the query by calling Request.ParseForm (possibly indirectly).

Fixes #55842 For #54663 For CVE-2022-2880

Change-Id: If1621f6b0e73a49d79059dae9e6b256e0ff18ca9 Reviewed-on: https://go-review.googlesource.com/c/go/+/432976 Reviewed-by: Roland Shoemaker [email protected] Reviewed-by: Brad Fitzpatrick [email protected] TryBot-Result: Gopher Robot [email protected] Run-TryBot: Damien Neil [email protected] (cherry picked from commit 7c84234) Reviewed-on: https://go-review.googlesource.com/c/go/+/433695 Reviewed-by: Dmitri Shuralyov [email protected] Reviewed-by: Dmitri Shuralyov [email protected]

bradfitz pushed a commit to tailscale/go that referenced this issue

Oct 5, 2022

…gling

Query parameter smuggling occurs when a proxy’s interpretation of query parameters differs from that of a downstream server. Change ReverseProxy to avoid forwarding ignored query parameters.

Remove unparsable query parameters from the outbound request

* if req.Form != nil after calling ReverseProxy.Director; and * before calling ReverseProxy.Rewrite.

This change preserves the existing behavior of forwarding the raw query untouched if a Director hook does not parse the query by calling Request.ParseForm (possibly indirectly).

Fixes golang#55843 For golang#54663 For CVE-2022-2880

Change-Id: If1621f6b0e73a49d79059dae9e6b256e0ff18ca9 Reviewed-on: https://go-review.googlesource.com/c/go/+/432976 Reviewed-by: Roland Shoemaker [email protected] Reviewed-by: Brad Fitzpatrick [email protected] TryBot-Result: Gopher Robot [email protected] Run-TryBot: Damien Neil [email protected] Reviewed-on: https://go-review.googlesource.com/c/go/+/433735 Reviewed-by: Dmitri Shuralyov [email protected] Reviewed-by: Dmitri Shuralyov [email protected]

bradfitz pushed a commit to tailscale/go that referenced this issue

Oct 5, 2022

…gling

Query parameter smuggling occurs when a proxy’s interpretation of query parameters differs from that of a downstream server. Change ReverseProxy to avoid forwarding ignored query parameters.

Remove unparsable query parameters from the outbound request

* if req.Form != nil after calling ReverseProxy.Director; and * before calling ReverseProxy.Rewrite.

This change preserves the existing behavior of forwarding the raw query untouched if a Director hook does not parse the query by calling Request.ParseForm (possibly indirectly).

Fixes golang#55843 For golang#54663 For CVE-2022-2880

Change-Id: If1621f6b0e73a49d79059dae9e6b256e0ff18ca9 Reviewed-on: https://go-review.googlesource.com/c/go/+/432976 Reviewed-by: Roland Shoemaker [email protected] Reviewed-by: Brad Fitzpatrick [email protected] TryBot-Result: Gopher Robot [email protected] Run-TryBot: Damien Neil [email protected] Reviewed-on: https://go-review.googlesource.com/c/go/+/433735 Reviewed-by: Dmitri Shuralyov [email protected] Reviewed-by: Dmitri Shuralyov [email protected]

bradfitz pushed a commit to tailscale/go that referenced this issue

Oct 5, 2022

…gling

Query parameter smuggling occurs when a proxy’s interpretation of query parameters differs from that of a downstream server. Change ReverseProxy to avoid forwarding ignored query parameters.

Remove unparsable query parameters from the outbound request

* if req.Form != nil after calling ReverseProxy.Director; and * before calling ReverseProxy.Rewrite.

This change preserves the existing behavior of forwarding the raw query untouched if a Director hook does not parse the query by calling Request.ParseForm (possibly indirectly).

Fixes golang#55843 For golang#54663 For CVE-2022-2880

Change-Id: If1621f6b0e73a49d79059dae9e6b256e0ff18ca9 Reviewed-on: https://go-review.googlesource.com/c/go/+/432976 Reviewed-by: Roland Shoemaker [email protected] Reviewed-by: Brad Fitzpatrick [email protected] TryBot-Result: Gopher Robot [email protected] Run-TryBot: Damien Neil [email protected] Reviewed-on: https://go-review.googlesource.com/c/go/+/433735 Reviewed-by: Dmitri Shuralyov [email protected] Reviewed-by: Dmitri Shuralyov [email protected]

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Red Hat Security Advisory 2022-8781-01 - Logging Subsystem for Red Hat OpenShift has a security update. Issues addressed include a denial of service vulnerability.

RHSA-2022:8781: Red Hat Security Advisory: Logging Subsystem 5.5.5 - Red Hat OpenShift security update

Logging Subsystem 5.5.5 - Red Hat OpenShift Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2020-36518: jackson-databind: denial of service via a large depth of nested objects * CVE-2022-2879: golang: archive/tar: unbounded memory consumption when reading headers * CVE-2022-2880: golang: net/http/httputil: ReverseProxy should not forward unparseable query parameters * CVE-2022-27664: golang: net/http: handle server errors after sending GOAWAY * CVE-2022-32189: golang: math/b...

CVE-2022-41715: [security] Go 1.19.2 and Go 1.18.7 are released

Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion or denial of service. The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are rejected. Normal use of regular expressions is unaffected.

CVE-2021-21285: Docker Engine release notes

In Docker before versions 9.03.15, 20.10.3 there is a vulnerability in which pulling an intentionally malformed Docker image manifest crashes the dockerd daemon. Versions 20.10.3 and 19.03.15 contain patches that prevent the daemon from crashing.

CVE: Latest News

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