Go 漏洞管理工具 govulncheck

14 Oct 2023

5 minutes reading time

#前言

在7月份 go 团队正式推出了官方的漏洞检测工具 - govulncheck, govulncheck 默认向 https://vuln.go.dev/ 漏洞数据库请求, 对数据库的请求不包含代码只有使用的包,你也可以使用 -db 来指导所使用的漏洞数据库,所使用的数据库必须实现相应的规范。

govulncheck 具有以下限制:

govulncheck 架构图

img.png

govulncheck 还提供了一个可用的 API govulncheck,使开发者能够方便的将 govulncheck 集成到各种工具之中。

#安装

通过以下命令安装 govulncheck:

go install golang.org/x/vuln/cmd/govulncheck@latest

#使用

安装完 govulncheck 后,我们就可以使用了,进入项目路径中,执行 govulncheck ./...

以下是我的一个项目的输出:

Scanning your code and 508 packages across 71 dependent modules for known vulnerabilities...

Vulnerability #1: GO-2023-2102
    HTTP/2 rapid reset can cause excessive work in net/http
  More info: https://pkg.go.dev/vuln/GO-2023-2102
  Standard library
    Found in: net/[email protected]
    Fixed in: net/[email protected]
    Example traces found:
      #1: cmd\xxx\main.go:94:19: xxx.main calls kratos.App.Run, which eventually calls http.Server.Serve
      #2: cmd\xxx\main.go:94:19: xxx.main calls kratos.App.Run, which eventually calls http.Server.ServeTLS

Vulnerability #2: GO-2023-2043
    Improper handling of special tags within script contexts in html/template
  More info: https://pkg.go.dev/vuln/GO-2023-2043
  Standard library
    Found in: html/[email protected]
    Fixed in: html/[email protected]
    Example traces found:
      #1: cmd\xxx\main.go:94:19: xxx.main calls kratos.App.Run, which eventually calls template.Template.Execute
      #2: cmd\xxx\main.go:94:19: xxx.main calls kratos.App.Run, which eventually calls template.Template.ExecuteTemplate

Vulnerability #3: GO-2023-2041
    Improper handling of HTML-like comments in script contexts in html/template
  More info: https://pkg.go.dev/vuln/GO-2023-2041
  Standard library
    Found in: html/[email protected]
    Fixed in: html/[email protected]
    Example traces found:
      #1: cmd\xxx\main.go:94:19: xxx.main calls kratos.App.Run, which eventually calls template.Template.Execute
      #2: cmd\xxx\main.go:94:19: xxx.main calls kratos.App.Run, which eventually calls template.Template.ExecuteTemplate

=== Informational ===

Found 3 vulnerabilities in packages that you import, but there are no call
stacks leading to the use of these vulnerabilities. You may not need to
take any action. See https://pkg.go.dev/golang.org/x/vuln/cmd/govulncheck
for details.

Vulnerability #1: GO-2023-2045
    Memory exhaustion in QUIC connection handling in crypto/tls
  More info: https://pkg.go.dev/vuln/GO-2023-2045
  Standard library
    Found in: crypto/[email protected]
    Fixed in: crypto/[email protected]

Vulnerability #2: GO-2023-2044
    Panic when processing post-handshake message on QUIC connections in
    crypto/tls
  More info: https://pkg.go.dev/vuln/GO-2023-2044
  Standard library
    Found in: crypto/[email protected]
    Fixed in: crypto/[email protected]

Vulnerability #3: GO-2023-1988
    Improper rendering of text nodes in golang.org/x/net/html
  More info: https://pkg.go.dev/vuln/GO-2023-1988
  Module: golang.org/x/net
    Found in: golang.org/x/[email protected]
    Fixed in: golang.org/x/[email protected]

Your code is affected by 3 vulnerabilities from the Go standard library.

Share feedback at https://go.dev/s/govulncheck-feedback.

输出内容分为2块,第一块是 Vulnerability 信息,是项目中存在的漏洞,可以看到发现了3个漏洞及具体的原因、触发函数、发现的版本和修复的版本。第二块是 Informational 是一些没有直接引用的包中存在的安全漏洞。

根据漏洞所在的宿主不同,第一部分的信息也可以分为两类:一类是Go语言自身(包括Go编译器、Go运行时和Go标准库等)引入的漏洞,另外一类则是第三方包(包括直接依赖的以及间接依赖的)引入的漏洞。

针对这两类漏洞,我们的解决方法有所不同。

第一类漏洞的解决方法十分简单,直接升级Go版本即可,比如这里我将我的Go版本从Go 1.18升级到最新的Go 1.18.6即可消除上面的所有第一类漏洞。 对于第三方包这种情况,如果是直接使用的,可以直接升级到相应版本,如果是间接引用的我们要根据直接引用的包的修复情况来决定。

#小结

本文介绍了 go 官方团队新推出的安全漏洞检查工具 govulncheck,通过使用这个工具我们能够轻松的检查出 go 代码中存在的漏洞。

#参考



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