SB2019011626 - Deserialization of Untrusted Data in drupal7 (Alpine package)
Published: January 16, 2019
Security Bulletin ID
SB2019011626
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Deserialization of Untrusted Data (CVE-ID: CVE-2018-1000888)
CWE-ID: CWE-502 - Deserialization of Untrusted Data
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data within tar files. A remote attacker can create a tar file with `phar://[path_to_malicious_phar_file]` as path and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=c424719f232a15cfc8f49cc56680e79bc3b64471
- https://git.alpinelinux.org/aports/commit/?id=87800be0f5a83903722d252e180638f2cd41913b
- https://git.alpinelinux.org/aports/commit/?id=9778b68435c4a757140400341651d4f4e1ddd666
- https://git.alpinelinux.org/aports/commit/?id=c478891017b4357ee3eae7389efe74f53551f5a4