diff --git a/.github/workflows/cross.yml b/.github/workflows/cross.yml
index a1de618e9d1..fbfdb69d161 100644
--- a/.github/workflows/cross.yml
+++ b/.github/workflows/cross.yml
@@ -42,7 +42,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@master
         id: toolchain
         with:
-          toolchain:  ${{ (matrix.target == 'riscv64gc-unknown-linux-gnu'  && '1.72.1') || 'stable' }}
+          toolchain: ${{ (matrix.target == 'riscv64gc-unknown-linux-gnu'  && '1.72.1') || 'stable' }}
           target: ${{ matrix.target }}
       - name: Set Rust toolchain override
         run: rustup override set ${{ steps.toolchain.outputs.name }}
@@ -69,7 +69,6 @@ jobs:
       matrix:
         rust: [ stable ]
         os: [ macos-13-xlarge ]
-        target: [ aarch64-apple-ios-sim ]
     steps:
       - uses: actions/checkout@v3
         with:
@@ -78,11 +77,10 @@ jobs:
         id: toolchain
         with:
           toolchain: ${{ matrix.rust }}
-          target: ${{ matrix.target }}
+          target: aarch64-apple-ios-sim
       - name: Set Rust toolchain override
         run: rustup override set ${{ steps.toolchain.outputs.name }}
-      - name: Run cargo test
-        working-directory: ./aws-lc-rs
-        run: cargo test --features bindgen,unstable --target ${{ matrix.target }}
-        env:
-          DYLD_ROOT_PATH: "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot"
+      - name: Install bash
+        run: brew install bash
+      - name: iOS Simulator Runner
+        run: ./scripts/ci/ios-simulator-runner.sh
diff --git a/scripts/ci/ios-simulator-runner.sh b/scripts/ci/ios-simulator-runner.sh
new file mode 100755
index 00000000000..8a9718749fb
--- /dev/null
+++ b/scripts/ci/ios-simulator-runner.sh
@@ -0,0 +1,82 @@
+#!/usr/bin/env bash
+# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0 OR ISC
+
+set -e
+
+REPO_ROOT=$(git rev-parse --show-toplevel)
+
+SIM_IMAGE_LIST_PATH='/Library/Developer/CoreSimulator/Images/images.plist'
+SIM_IMAGE_MOUNT_BASE='/Volumes'
+SIM_IMAGE_PATTERN='iOS-17'
+
+if [[ ! -r "${SIM_IMAGE_LIST_PATH}" ]]; then
+  echo ERROR: Image list not found: "${SIM_IMAGE_LIST_PATH}"
+  exit 1
+fi
+
+function plist_count_images() {
+  plutil -extract 'images' raw  "${SIM_IMAGE_LIST_PATH}" -o -
+}
+
+function plist_image_id_for() {
+  plutil -extract "images.${1}.runtimeInfo.bundleIdentifier" raw  "${SIM_IMAGE_LIST_PATH}" -o -
+}
+
+function plist_image_path_for() {
+  plutil -extract "images.${1}.path.relative" raw  "${SIM_IMAGE_LIST_PATH}" -o - | sed -e 's/^file:\/\///'
+}
+
+function plist_image_build_for() {
+  plutil -extract "images.${1}.runtimeInfo.build" raw  "${SIM_IMAGE_LIST_PATH}" -o -
+}
+
+function find_mount() {
+  hdiutil info | grep -s "${1}"
+}
+
+function find_runtime_root() {
+  find "${1}" -type d -name "RuntimeRoot" |head -n 1
+}
+
+
+IMAGE_LIST_SIZE=$(plist_count_images)
+IMAGE_LIST_LAST_IDX=$(( "${IMAGE_LIST_SIZE}" - 1 ))
+IMAGE_PATH=''
+IMAGE_BUILD=''
+
+
+for i in $(seq 0 "${IMAGE_LIST_LAST_IDX}"); do
+  if [[ $(plist_image_id_for "${i}") == *"${SIM_IMAGE_PATTERN}"* ]]; then
+    IMAGE_PATH=$(plist_image_path_for "${i}")
+    IMAGE_BUILD=$(plist_image_build_for "${i}")
+  fi
+done
+
+if [[ -z ${IMAGE_PATH} ]]; then
+  echo ERROR: ${SIM_IMAGE_PATTERN} image not found.
+  exit 1
+fi
+
+IMAGE_MOUNT_POINT="${SIM_IMAGE_MOUNT_BASE}/iOS_${IMAGE_BUILD}"
+
+if ! find_mount "${IMAGE_MOUNT_POINT}"; then
+  sudo hdiutil attach "${IMAGE_PATH}" -mountpoint "${IMAGE_MOUNT_POINT}"
+fi
+
+if ! find_mount "${IMAGE_MOUNT_POINT}"; then
+  echo ERROR: Unable to mount runtime
+  exit 1
+fi
+
+DYLD_ROOT_PATH=''
+DYLD_ROOT_PATH=$(find_runtime_root "${IMAGE_MOUNT_POINT}")
+
+if [[ -z "${DYLD_ROOT_PATH}" ]]; then
+  echo ERROR: RuntimeRoot not found: "${IMAGE_MOUNT_POINT}"
+  exit 1
+fi
+
+export DYLD_ROOT_PATH
+cd "${REPO_ROOT}"/aws-lc-rs
+cargo test --features bindgen,unstable --target aarch64-apple-ios-sim