CVE-2016-4971
Description
GNU wget before 1.18 allows remote servers to write to arbitrary files by redirecting a request from HTTP to a crafted FTP resource.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
GNU Wget < 1.18 - Arbitrary File Upload (2)
GNU Wget < 1.18 - Arbitrary File Upload / Remote Code Execution
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Ubuntu Affected 4 releases
| Version | Status | Fixed in |
|---|---|---|
| 16.04 | Affected | — |
| 15.10 | Affected | — |
| 14.04 | Affected | — |
| 12.04 | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.18-1 |
| sid | Fixed | 1.18-1 |
| forky | Fixed | 1.18-1 |
| bullseye | Fixed | 1.18-1 |
| bookworm | Fixed | 1.18-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| gnu | wget | {"endExcluding":"1.18"} | 1.18 |
References
- https://www.suse.com/security/cve/CVE-2016-4971.html
- http://git.savannah.gnu.org/cgit/wget.git/commit/?id=e996e322ffd42aaa051602da182d03178d0f13e1
- http://lists.gnu.org/archive/html/info-gnu/2016-06/msg00004.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00043.html
- http://packetstormsecurity.com/files/162395/GNU-wget-Arbitrary-File-Upload-Code-Execution.html
- http://rhn.redhat.com/errata/RHSA-2016-2587.html
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- http://www.securityfocus.com/bid/91530
- http://www.securitytracker.com/id/1036133
- http://www.ubuntu.com/usn/USN-3012-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1343666
- https://security.gentoo.org/glsa/201610-11
- https://security.paloaltonetworks.com/CVE-2016-4971
- https://www.exploit-db.com/exploits/40064/
- https://security-tracker.debian.org/tracker/CVE-2016-4971
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.