Vulnerability in giuspen cherrytree

[ Why it matters ]Priority signals

• Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official description

CherryTree through 1.7.2 contains an OS command injection vulnerability in CtActions::link_clicked that allows attackers to execute commands by embedding shell metacharacters in web link URLs. When the non-default Custom Web Link Clicked Action option is enabled, attackers can supply crafted documents whose links pass $(...), backticks, or semicolons unquoted to std::system, running commands as the victim on click.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/giuspen/cherrytree
• github.com/giuspen/cherrytree/blob/v1.7.2/src/ct/ct_actions_others.cc
• github.com/giuspen/cherrytree/blob/v1.7.2/src/ct/ct_misc_utils.cc
• github.com/giuspen/cherrytree/issues/2945
• www.vulncheck.com/advisories/cherrytree-through-1.7.2-os-command-injection-via-custom-w…