Cerb up to 7.0.3 ajax.php saveWorkerPeek cross-site request forgery

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.9$0-$5k0.69

Summaryinfo

A vulnerability was found in Cerb up to 7.0.3. It has been classified as problematic. This issue affects the function saveWorkerPeek of the file ajax.php. Performing a manipulation results in cross-site request forgery. This vulnerability is known as CVE-2015-6545. Remote exploitation of the attack is possible. Furthermore, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Cerb up to 7.0.3. This affects the function saveWorkerPeek of the file ajax.php. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. The summary by CVE is:

Cross-site request forgery (CSRF) vulnerability in ajax.php in Cerb before 7.0.4 allows remote attackers to hijack the authentication of administrators for requests that add an administrator account via a saveWorkerPeek action.

The weakness was published 09/03/2015 (Website). The advisory is shared at htbridge.com. This vulnerability is uniquely identified as CVE-2015-6545 since 08/20/2015. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known.

A public exploit has been developed by High-Tech Bridge SA and been published before and not just after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:ajax.php it is possible to find vulnerable targets with Google Hacking. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11520 (Cerb ajax.php Cross-Site Request Forgery Vulnerability).

Upgrading to version 7.0.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (38074) and Vulnerability Center (SBV-54103†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: High-Tech Bridge SA
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Cerb 7.0.4
Patch: github.com

Timelineinfo

08/20/2015 🔍
09/02/2015 +13 days 🔍
09/02/2015 +0 days 🔍
09/02/2015 +0 days 🔍
09/03/2015 +1 days 🔍
09/03/2015 +0 days 🔍
09/04/2015 +1 days 🔍
11/02/2015 +59 days 🔍
11/18/2024 +3304 days 🔍

Sourcesinfo

Advisory: 133404
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-6545 (🔍)
GCVE (CVE): GCVE-0-2015-6545
GCVE (VulDB): GCVE-100-77565
Vulnerability Center: 54103 - Cerb <7.0.4 Remote CSRF via Failure in AJAX.PHP, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/04/2015 10:22
Updated: 11/18/2024 09:18
Changes: 09/04/2015 10:22 (48), 03/10/2018 10:42 (15), 06/14/2022 09:31 (4), 11/18/2024 09:18 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!