CVE-2023-45159 1E Client installer can perform arbitrary file deletion on protected files
A non-privileged user can delete protected files by exploiting symbolic links in the 1E Client installer during service startup.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-45159?
CVE-2023-45159 is a high-severity path traversal vulnerability in 1E Client, published on 5 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
1E Client installer can perform arbitrary file deletion on protected files.
A non-privileged user could provide a symbolic link or Windows junction to point to a protected directory in the installer that the 1E Client would then clear on service startup.
A hotfix is available from the 1E support portal that forces the 1E Client to check for a symbolic link or junction and if it finds one refuses to use that path and instead creates a path involving a random GUID.
for v8.1 use hotfix Q23097 for v8.4 use hotfix Q23105 for v9.0 use hotfix Q23115
for SaaS customers, use 1EClient v23.7 plus hotfix Q23121
Weakness: CWE-59
Which versions are affected by CVE-2023-45159?
It affects 1 product.
Products include 1e Client.
How do I fix CVE-2023-45159?
No fix has been published for CVE-2023-45159 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2023-45159 being exploited?
There is no known exploitation of CVE-2023-45159 in the wild and no public exploit code.
Other vulnerabilities in 1E Client
Sources
Also known as GHSA-p6vf-3g57-hjv6.