CVE-2017-17098 — The writeLog function in fn_common

The writeLog function in fn_common.php in gps-server.net GPS Tracking Software (self hosted) through 3.0 allows remote attackers to inject arbitrary PHP code via a crafted request that is mishandled during admin log viewing, as demonstrated by <?php system($_GET[cmd]); ?> i

01What is this vulnerability?

The writeLog function in fn_common.php in gps-server.net GPS Tracking Software (self hosted) through 3.0 allows remote attackers to inject arbitrary PHP code via a crafted request that is mishandled during admin log viewing, as demonstrated by <?php system($_GET[cmd]); ?> in a login request.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-01-02T15:00:00.000Z
• Last modified: 2024-08-05T20:43:59.343Z

09References

• gist.github.com — https://gist.github.com/pak0s/ea7a80c2614d9cd43cfb8230c65c9fec
• www.exploit-db.com — https://www.exploit-db.com/exploits/43431/
• s1.gps-server.net — https://s1.gps-server.net/changelog.txt