2.5low
CVE-2017-18869
Time-of-check Time-of-use (TOCTOU) Race Condition in chownr
Also known as GHSA-c6rq-rjc2-86v2
Published 6 y ago · modified 4 mo ago · JSON
CVSS
2.5
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.3%
percentile 27%
Public exploits
0
none known
Summary
A TOCTOU issue in the chownr package before 1.1.0 for Node.js 10.10 could allow a local attacker to trick it into descending into unintended directories via symlink attacks.
Exploit prediction (EPSS)
0.33% probability of exploitation in the next 30 days, higher than 27% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 2.5 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 1.9 | AV:L/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 2.5 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | chownr | <1.1.0 | 1.1.0 |
Classification
- Weakness
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
References
- github.com /isaacs/chownr/issues/14 · x_refsource_MISC, x_transferred
- bugs.debian.org /cgi-bin/bugreport.cgi?bug=863985 · x_refsource_MISC, x_transferred
- bugzilla.redhat.com /show_bug.cgi?id=1611614 · x_refsource_MISC, x_transferred
- snyk.io /vuln/npm:chownr:20180731 · x_refsource_MISC, x_transferred
- nvd.nist.gov /vuln/detail/CVE-2017-18869 · advisory
- github.com /isaacs/chownr/commit/36a93e3f0a220062c47b237cf6ab6d5f55cd79c9 · web
- github.com /isaacs/chownr/commit/a631d841022880e5c8d694408a7e96d6d576d0ce · web
Sources
- CVE List: CVE-2017-18869
- GitHub Advisory: GHSA-c6rq-rjc2-86v2
- NVD: CVE-2017-18869
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.