Directory Traversal Vulnerability in Perl's Archive::Tar Module
CVE-2018-12015

7.5HIGH

Key Information:

Vendor

Canonical

Status
Ubuntu Linux
Vendor
CVE Published:
7 June 2018

What is CVE-2018-12015?

The Archive::Tar module in Perl versions up to 5.26.2 has a vulnerability that allows attackers to exploit a directory traversal flaw. This vulnerability permits malicious actors to bypass the intended directory traversal protections. By crafting an archive that contains both a symlink and a regular file with the same name, an attacker can overwrite arbitrary files on the server. This capability poses significant security risks, enabling potential unauthorized access and manipulation of sensitive files within the affected systems.

References

http://www.securityfocus.com/bid/104423
vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1041048
vdb-entryx_refsource_SECTRACK
https://www.debian.org/security/2018/dsa-4226
vendor-advisoryx_refsource_DEBIAN

EPSS Score

38% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.