Vulnerability · Published Mar 24, 2021 · Assigned by mitre
CVE-2021-29133
Medium 5.5
In plain English
A medium-severity security flaw in the haserl package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit. Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.1%top 34.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Metasploit
Official description
Lack of verification in haserl, a component of Alpine Linux Configuration Framework, before 0.9.36 allows local users to read the contents of any file on the filesystem.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | haserl | 0.9.36-r0 | ALPINE-CVE-2021-29133 |
| Alpine:v3.21 | haserl | 0.9.36-r0 | ALPINE-CVE-2021-29133 |
| Alpine:v3.22 | haserl | 0.9.36-r0 | ALPINE-CVE-2021-29133 |
| Alpine:v3.23 | haserl | 0.9.36-r0 | ALPINE-CVE-2021-29133 |
| Alpine:v3.24 | haserl | 0.9.36-r0 | ALPINE-CVE-2021-29133 |
Affected products (as reported)
References
- https://github.com/rapid7/metasploit-framework/pull/14833 x_refsource_MISC
- https://gitlab.alpinelinux.org/alpine/aports/-/issues/12539 x_refsource_MISC
- https://twitter.com/steaIth/status/1364940271054712842 x_refsource_MISC
- https://github.com/rapid7/metasploit-framework/pull/14833/commits/5bf6b2d094deb22fa8183ce161b90cbe4fd40a70 x_refsource_MISC