CVE-2022-3700 — A Time of Check Time of Use (TOCTOU) vulnerability was reported in the Lenovo Va

A Time of Check Time of Use (TOCTOU) vulnerability was reported in the Lenovo Vantage SystemUpdate Plugin version 2.0.0.212 and earlier that could allow a local attacker to delete arbitrary files.

01What is this vulnerability?

A Time of Check Time of Use (TOCTOU) vulnerability was reported in the Lenovo Vantage SystemUpdate Plugin version 2.0.0.212 and earlier that could allow a local attacker to delete arbitrary files.

02Affected products

Vendor	Product	Versions
—	Lenovo / Vantage SystemUpdate Plugin —	—

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-10-27T19:32:04.281Z
• Last modified: 2024-09-09T14:56:01.610Z

09References

• support.lenovo.com — https://support.lenovo.com/us/en/product_security/LEN-94532